Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2019.1730
Important: vdsm security update
15 May 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Red Hat Virtualization
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Impact/Access: Access Privileged Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-11091 CVE-2018-12130 CVE-2018-12127
CVE-2018-12126
Reference: ASB-2019.0138
ESB-2019.1727
ESB-2019.1723
ESB-2019.1712
ESB-2019.1708
Original Bulletin:
https://access.redhat.com/errata/RHSA-2019:1203
https://access.redhat.com/errata/RHSA-2019:1204
https://access.redhat.com/errata/RHSA-2019:1205
https://access.redhat.com/errata/RHSA-2019:1206
https://access.redhat.com/errata/RHSA-2019:1207
https://access.redhat.com/errata/RHSA-2019:1208
https://access.redhat.com/errata/RHSA-2019:1209
Comment: This bulletin contains seven (7) Red Hat security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
=====================================================================
Red Hat Security Advisory
Synopsis: Important: vdsm security update
Advisory ID: RHSA-2019:1203-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1203
Issue date: 2019-05-14
CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130
CVE-2019-11091
=====================================================================
1. Summary:
An update for vdsm is now available for Red Hat Virtualization 4 for Red
Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts - noarch, ppc64le, x86_64
3. Description:
The VDSM service is required by a Virtualization Manager to manage the
Linux hosts. VDSM manages and monitors the host's storage, memory and
networks as well as virtual machine creation, other host administration
tasks, statistics gathering, and log collection.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism
used by modern CPUs when a cache-miss is made on L1 CPU cache. If an
attacker can generate a load operation that would create a page fault, the
execution will continue speculatively with incorrect data from the fill
buffer while the data is fetched from higher level caches. This response
time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations
to improve the performance of writing data back to CPU caches. The write
operation is split into STA (STore Address) and STD (STore Data)
sub-operations. These sub-operations allow the processor to hand-off
address generation logic into these sub-operations for optimized writes.
Both of these sub-operations write to a shared distributed processor
structure called the 'processor store buffer'. As a result, an unprivileged
attacker could use this flaw to read private data resident within the CPU's
processor store buffer. (CVE-2018-12126)
* Microprocessors use a â\x{128}\x{152}load portâ\x{128}\x{153} subcomponent to perform load operations
from memory or IO. During a load operation, the load port receives data
from the memory or IO subsystem and then provides the data to the CPU
registers and operations in the CPUâ\x{128}\x{153}s pipelines. Stale load operations
results are stored in the 'load port' table until overwritten by newer
operations. Certain load-port operations triggered by an attacker can be
used to reveal data about previous stale requests leaking data back to the
attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative
execution may allow an authenticated user to potentially enable information
disclosure via a side channel with local access. (CVE-2019-11091)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/2974891
5. Bugs fixed (https://bugzilla.redhat.com/):
1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)
1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)
1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)
1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
6. Package List:
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:
Source:
vdsm-4.30.13-4.el7ev.src.rpm
noarch:
vdsm-api-4.30.13-4.el7ev.noarch.rpm
vdsm-client-4.30.13-4.el7ev.noarch.rpm
vdsm-common-4.30.13-4.el7ev.noarch.rpm
vdsm-hook-cpuflags-4.30.13-4.el7ev.noarch.rpm
vdsm-hook-ethtool-options-4.30.13-4.el7ev.noarch.rpm
vdsm-hook-fcoe-4.30.13-4.el7ev.noarch.rpm
vdsm-hook-localdisk-4.30.13-4.el7ev.noarch.rpm
vdsm-hook-macspoof-4.30.13-4.el7ev.noarch.rpm
vdsm-hook-nestedvt-4.30.13-4.el7ev.noarch.rpm
vdsm-hook-openstacknet-4.30.13-4.el7ev.noarch.rpm
vdsm-hook-vhostmd-4.30.13-4.el7ev.noarch.rpm
vdsm-hook-vmfex-dev-4.30.13-4.el7ev.noarch.rpm
vdsm-http-4.30.13-4.el7ev.noarch.rpm
vdsm-jsonrpc-4.30.13-4.el7ev.noarch.rpm
vdsm-python-4.30.13-4.el7ev.noarch.rpm
vdsm-yajsonrpc-4.30.13-4.el7ev.noarch.rpm
ppc64le:
vdsm-4.30.13-4.el7ev.ppc64le.rpm
vdsm-gluster-4.30.13-4.el7ev.ppc64le.rpm
vdsm-hook-checkips-4.30.13-4.el7ev.ppc64le.rpm
vdsm-hook-extra-ipv4-addrs-4.30.13-4.el7ev.ppc64le.rpm
vdsm-network-4.30.13-4.el7ev.ppc64le.rpm
x86_64:
vdsm-4.30.13-4.el7ev.x86_64.rpm
vdsm-gluster-4.30.13-4.el7ev.x86_64.rpm
vdsm-hook-checkips-4.30.13-4.el7ev.x86_64.rpm
vdsm-hook-extra-ipv4-addrs-4.30.13-4.el7ev.x86_64.rpm
vdsm-network-4.30.13-4.el7ev.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-12126
https://access.redhat.com/security/cve/CVE-2018-12127
https://access.redhat.com/security/cve/CVE-2018-12130
https://access.redhat.com/security/cve/CVE-2019-11091
https://access.redhat.com/security/vulnerabilities/mds
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
- ------------------------------------------------------------------------------
=====================================================================
Red Hat Security Advisory
Synopsis: Important: vdsm security update
Advisory ID: RHSA-2019:1204-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1204
Issue date: 2019-05-14
CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130
CVE-2019-11091
=====================================================================
1. Summary:
An update for vdsm is now available for Red Hat Virtualization 4.2 for Red
Hat Enterprise Linux 7.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Virtualization 4.2 Management Agent for RHEL 7.6 EUS Hosts - noarch, ppc64le, x86_64
3. Description:
The VDSM service is required by a Virtualization Manager to manage the
Linux hosts. VDSM manages and monitors the host's storage, memory and
networks as well as virtual machine creation, other host administration
tasks, statistics gathering, and log collection.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism
used by modern CPUs when a cache-miss is made on L1 CPU cache. If an
attacker can generate a load operation that would create a page fault, the
execution will continue speculatively with incorrect data from the fill
buffer while the data is fetched from higher level caches. This response
time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations
to improve the performance of writing data back to CPU caches. The write
operation is split into STA (STore Address) and STD (STore Data)
sub-operations. These sub-operations allow the processor to hand-off
address generation logic into these sub-operations for optimized writes.
Both of these sub-operations write to a shared distributed processor
structure called the 'processor store buffer'. As a result, an unprivileged
attacker could use this flaw to read private data resident within the CPU's
processor store buffer. (CVE-2018-12126)
* Microprocessors use a â\x{128}\x{152}load portâ\x{128}\x{153} subcomponent to perform load operations
from memory or IO. During a load operation, the load port receives data
from the memory or IO subsystem and then provides the data to the CPU
registers and operations in the CPUâ\x{128}\x{153}s pipelines. Stale load operations
results are stored in the 'load port' table until overwritten by newer
operations. Certain load-port operations triggered by an attacker can be
used to reveal data about previous stale requests leaking data back to the
attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative
execution may allow an authenticated user to potentially enable information
disclosure via a side channel with local access. (CVE-2019-11091)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/2974891
5. Bugs fixed (https://bugzilla.redhat.com/):
1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)
1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)
1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)
1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
6. Package List:
Red Hat Virtualization 4.2 Management Agent for RHEL 7.6 EUS Hosts:
Source:
vdsm-4.20.49-1.el7ev.src.rpm
noarch:
vdsm-api-4.20.49-1.el7ev.noarch.rpm
vdsm-client-4.20.49-1.el7ev.noarch.rpm
vdsm-common-4.20.49-1.el7ev.noarch.rpm
vdsm-hook-cpuflags-4.20.49-1.el7ev.noarch.rpm
vdsm-hook-ethtool-options-4.20.49-1.el7ev.noarch.rpm
vdsm-hook-fcoe-4.20.49-1.el7ev.noarch.rpm
vdsm-hook-localdisk-4.20.49-1.el7ev.noarch.rpm
vdsm-hook-macspoof-4.20.49-1.el7ev.noarch.rpm
vdsm-hook-nestedvt-4.20.49-1.el7ev.noarch.rpm
vdsm-hook-openstacknet-4.20.49-1.el7ev.noarch.rpm
vdsm-hook-vhostmd-4.20.49-1.el7ev.noarch.rpm
vdsm-hook-vmfex-dev-4.20.49-1.el7ev.noarch.rpm
vdsm-http-4.20.49-1.el7ev.noarch.rpm
vdsm-jsonrpc-4.20.49-1.el7ev.noarch.rpm
vdsm-python-4.20.49-1.el7ev.noarch.rpm
vdsm-yajsonrpc-4.20.49-1.el7ev.noarch.rpm
ppc64le:
vdsm-4.20.49-1.el7ev.ppc64le.rpm
vdsm-gluster-4.20.49-1.el7ev.ppc64le.rpm
vdsm-hook-checkips-4.20.49-1.el7ev.ppc64le.rpm
vdsm-hook-extra-ipv4-addrs-4.20.49-1.el7ev.ppc64le.rpm
vdsm-network-4.20.49-1.el7ev.ppc64le.rpm
x86_64:
vdsm-4.20.49-1.el7ev.x86_64.rpm
vdsm-gluster-4.20.49-1.el7ev.x86_64.rpm
vdsm-hook-checkips-4.20.49-1.el7ev.x86_64.rpm
vdsm-hook-extra-ipv4-addrs-4.20.49-1.el7ev.x86_64.rpm
vdsm-network-4.20.49-1.el7ev.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-12126
https://access.redhat.com/security/cve/CVE-2018-12127
https://access.redhat.com/security/cve/CVE-2018-12130
https://access.redhat.com/security/cve/CVE-2019-11091
https://access.redhat.com/security/vulnerabilities/mds
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
- ------------------------------------------------------------------------------
=====================================================================
Red Hat Security Advisory
Synopsis: Important: rhvm-setup-plugins security update
Advisory ID: RHSA-2019:1205-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1205
Issue date: 2019-05-14
CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130
CVE-2019-11091
=====================================================================
1. Summary:
An update for rhvm-setup-plugins is now available for Red Hat
Virtualization 4.3.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
RHV-M 4.3 - noarch
3. Description:
The rhvm-setup-plugins package adds functionality exclusive only to Red Hat
Virtualization Manager, and is not available for the upstream ovirt-engine.
It includes the configuration of the Red Hat Support plugin, copying
downstream-only artifacts to the ISO domain, and links to the knowledgebase
and other support material.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism
used by modern CPUs when a cache-miss is made on L1 CPU cache. If an
attacker can generate a load operation that would create a page fault, the
execution will continue speculatively with incorrect data from the fill
buffer while the data is fetched from higher level caches. This response
time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations
to improve the performance of writing data back to CPU caches. The write
operation is split into STA (STore Address) and STD (STore Data)
sub-operations. These sub-operations allow the processor to hand-off
address generation logic into these sub-operations for optimized writes.
Both of these sub-operations write to a shared distributed processor
structure called the 'processor store buffer'. As a result, an unprivileged
attacker could use this flaw to read private data resident within the CPU's
processor store buffer. (CVE-2018-12126)
* Microprocessors use a â\x{128}\x{152}load portâ\x{128}\x{153} subcomponent to perform load operations
from memory or IO. During a load operation, the load port receives data
from the memory or IO subsystem and then provides the data to the CPU
registers and operations in the CPUâ\x{128}\x{153}s pipelines. Stale load operations
results are stored in the 'load port' table until overwritten by newer
operations. Certain load-port operations triggered by an attacker can be
used to reveal data about previous stale requests leaking data back to the
attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative
execution may allow an authenticated user to potentially enable information
disclosure via a side channel with local access. (CVE-2019-11091)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/2974891
5. Bugs fixed (https://bugzilla.redhat.com/):
1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)
1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)
1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)
1702716 - Upgrade rhvm-setup-plugins to 4.3.1
1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
6. Package List:
RHV-M 4.3:
Source:
rhvm-setup-plugins-4.3.1-1.el7ev.src.rpm
noarch:
rhvm-setup-plugins-4.3.1-1.el7ev.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-12126
https://access.redhat.com/security/cve/CVE-2018-12127
https://access.redhat.com/security/cve/CVE-2018-12130
https://access.redhat.com/security/cve/CVE-2019-11091
https://access.redhat.com/security/vulnerabilities/mds
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
- ------------------------------------------------------------------------------
=====================================================================
Red Hat Security Advisory
Synopsis: Important: rhvm-setup-plugins security update
Advisory ID: RHSA-2019:1206-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1206
Issue date: 2019-05-14
CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130
CVE-2019-11091
=====================================================================
1. Summary:
An update for rhvm-setup-plugins is now available for Red Hat
Virtualization 4.2.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
RHV-M 4.2 - noarch
3. Description:
The rhvm-setup-plugins package adds functionality exclusive only to Red Hat
Virtualization Manager, and is not available for the upstream ovirt-engine.
It includes the configuration of the Red Hat Support plugin, copying
downstream-only artifacts to the ISO domain, and links to the knowledgebase
and other support material.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism
used by modern CPUs when a cache-miss is made on L1 CPU cache. If an
attacker can generate a load operation that would create a page fault, the
execution will continue speculatively with incorrect data from the fill
buffer while the data is fetched from higher level caches. This response
time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations
to improve the performance of writing data back to CPU caches. The write
operation is split into STA (STore Address) and STD (STore Data)
sub-operations. These sub-operations allow the processor to hand-off
address generation logic into these sub-operations for optimized writes.
Both of these sub-operations write to a shared distributed processor
structure called the 'processor store buffer'. As a result, an unprivileged
attacker could use this flaw to read private data resident within the CPU's
processor store buffer. (CVE-2018-12126)
* Microprocessors use a â\x{128}\x{152}load portâ\x{128}\x{153} subcomponent to perform load operations
from memory or IO. During a load operation, the load port receives data
from the memory or IO subsystem and then provides the data to the CPU
registers and operations in the CPUâ\x{128}\x{153}s pipelines. Stale load operations
results are stored in the 'load port' table until overwritten by newer
operations. Certain load-port operations triggered by an attacker can be
used to reveal data about previous stale requests leaking data back to the
attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative
execution may allow an authenticated user to potentially enable information
disclosure via a side channel with local access. (CVE-2019-11091)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/2974891
5. Bugs fixed (https://bugzilla.redhat.com/):
1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)
1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)
1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)
1702717 - Upgrade rhvm-setup-plugins to 4.2.14
1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
6. Package List:
RHV-M 4.2:
Source:
rhvm-setup-plugins-4.2.14-1.el7ev.src.rpm
noarch:
rhvm-setup-plugins-4.2.14-1.el7ev.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-12126
https://access.redhat.com/security/cve/CVE-2018-12127
https://access.redhat.com/security/cve/CVE-2018-12130
https://access.redhat.com/security/cve/CVE-2019-11091
https://access.redhat.com/security/vulnerabilities/mds
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
- ------------------------------------------------------------------------------
=====================================================================
Red Hat Security Advisory
Synopsis: Important: redhat-virtualization-host security update
Advisory ID: RHSA-2019:1207-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1207
Issue date: 2019-05-14
CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130
CVE-2019-11091
=====================================================================
1. Summary:
An update for redhat-release-virtualization-host and
redhat-virtualization-host is now available for Red Hat Virtualization 4
for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
RHEL 7-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64
Red Hat Virtualization 4 Hypervisor for RHEL 7 - noarch
3. Description:
The redhat-virtualization-host packages provide the Red Hat Virtualization
Host. These packages include redhat-release-virtualization-host,
ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are
installed using a special build of Red Hat Enterprise Linux with only the
packages required to host virtual machines. RHVH features a Cockpit user
interface for monitoring the host's resources and performing administrative
tasks.
The ovirt-node-ng packages provide the Red Hat Virtualization Host. These
packages include redhat-release-virtualization-host, ovirt-node, and
rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a
special build of Red Hat Enterprise Linux with only the packages required
to host virtual machines. RHVH features a Cockpit user interface for
monitoring the host's resources and performing administrative tasks.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism
used by modern CPUs when a cache-miss is made on L1 CPU cache. If an
attacker can generate a load operation that would create a page fault, the
execution will continue speculatively with incorrect data from the fill
buffer while the data is fetched from higher level caches. This response
time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations
to improve the performance of writing data back to CPU caches. The write
operation is split into STA (STore Address) and STD (STore Data)
sub-operations. These sub-operations allow the processor to hand-off
address generation logic into these sub-operations for optimized writes.
Both of these sub-operations write to a shared distributed processor
structure called the 'processor store buffer'. As a result, an unprivileged
attacker could use this flaw to read private data resident within the CPU's
processor store buffer. (CVE-2018-12126)
* Microprocessors use a â\x{128}\x{152}load portâ\x{128}\x{153} subcomponent to perform load operations
from memory or IO. During a load operation, the load port receives data
from the memory or IO subsystem and then provides the data to the CPU
registers and operations in the CPUâ\x{128}\x{153}s pipelines. Stale load operations
results are stored in the 'load port' table until overwritten by newer
operations. Certain load-port operations triggered by an attacker can be
used to reveal data about previous stale requests leaking data back to the
attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative
execution may allow an authenticated user to potentially enable information
disclosure via a side channel with local access. (CVE-2019-11091)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/2974891
5. Bugs fixed (https://bugzilla.redhat.com/):
1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)
1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)
1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)
1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
6. Package List:
Red Hat Virtualization 4 Hypervisor for RHEL 7:
Source:
redhat-virtualization-host-4.3-20190512.0.el7_6.src.rpm
noarch:
redhat-virtualization-host-image-update-4.3-20190512.0.el7_6.noarch.rpm
RHEL 7-based RHEV-H for RHEV 4 (build requirements):
Source:
redhat-release-virtualization-host-4.3-0.7.el7.src.rpm
noarch:
redhat-virtualization-host-image-update-placeholder-4.3-0.7.el7.noarch.rpm
x86_64:
redhat-release-virtualization-host-4.3-0.7.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-12126
https://access.redhat.com/security/cve/CVE-2018-12127
https://access.redhat.com/security/cve/CVE-2018-12130
https://access.redhat.com/security/cve/CVE-2019-11091
https://access.redhat.com/security/vulnerabilities/mds
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
- ------------------------------------------------------------------------------
=====================================================================
Red Hat Security Advisory
Synopsis: Important: rhvm-appliance security update
Advisory ID: RHSA-2019:1208-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1208
Issue date: 2019-05-14
CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130
CVE-2019-11091
=====================================================================
1. Summary:
An update for rhvm-appliance is now available for Red Hat Virtualization 4
for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Virtualization 4 Hypervisor for RHEL 7 - x86_64
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts - x86_64
3. Description:
The RHV-M Virtual Appliance automates the process of installing and
configuring the Red Hat Virtualization Manager. The appliance is available
to download as an OVA file from the Customer Portal.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism
used by modern CPUs when a cache-miss is made on L1 CPU cache. If an
attacker can generate a load operation that would create a page fault, the
execution will continue speculatively with incorrect data from the fill
buffer while the data is fetched from higher level caches. This response
time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations
to improve the performance of writing data back to CPU caches. The write
operation is split into STA (STore Address) and STD (STore Data)
sub-operations. These sub-operations allow the processor to hand-off
address generation logic into these sub-operations for optimized writes.
Both of these sub-operations write to a shared distributed processor
structure called the 'processor store buffer'. As a result, an unprivileged
attacker could use this flaw to read private data resident within the CPU's
processor store buffer. (CVE-2018-12126)
* Microprocessors use a â\x{128}\x{152}load portâ\x{128}\x{153} subcomponent to perform load operations
from memory or IO. During a load operation, the load port receives data
from the memory or IO subsystem and then provides the data to the CPU
registers and operations in the CPUâ\x{128}\x{153}s pipelines. Stale load operations
results are stored in the 'load port' table until overwritten by newer
operations. Certain load-port operations triggered by an attacker can be
used to reveal data about previous stale requests leaking data back to the
attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative
execution may allow an authenticated user to potentially enable information
disclosure via a side channel with local access. (CVE-2019-11091)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/2974891
5. Bugs fixed (https://bugzilla.redhat.com/):
1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)
1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)
1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)
1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
6. Package List:
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:
Source:
rhvm-appliance-4.3-20190506.0.el7.src.rpm
x86_64:
rhvm-appliance-4.3-20190506.0.el7.x86_64.rpm
Red Hat Virtualization 4 Hypervisor for RHEL 7:
Source:
rhvm-appliance-4.3-20190506.0.el7.src.rpm
x86_64:
rhvm-appliance-4.3-20190506.0.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-12126
https://access.redhat.com/security/cve/CVE-2018-12127
https://access.redhat.com/security/cve/CVE-2018-12130
https://access.redhat.com/security/cve/CVE-2019-11091
https://access.redhat.com/security/vulnerabilities/mds
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
- ------------------------------------------------------------------------------
=====================================================================
Red Hat Security Advisory
Synopsis: Important: redhat-virtualization-host security update
Advisory ID: RHSA-2019:1209-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1209
Issue date: 2019-05-14
CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130
CVE-2019-11091
=====================================================================
1. Summary:
An update for redhat-release-virtualization-host and
redhat-virtualization-host is now available for Red Hat Virtualization 4.2
for Red Hat Enterprise Linux 7.6 EUS.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS - noarch, x86_64
3. Description:
The redhat-virtualization-host packages provide the Red Hat Virtualization
Host. These packages include redhat-release-virtualization-host,
ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are
installed using a special build of Red Hat Enterprise Linux with only the
packages required to host virtual machines. RHVH features a Cockpit user
interface for monitoring the host's resources and performing administrative
tasks.
The ovirt-node-ng packages provide the Red Hat Virtualization Host. These
packages include redhat-release-virtualization-host, ovirt-node, and
rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a
special build of Red Hat Enterprise Linux with only the packages required
to host virtual machines. RHVH features a Cockpit user interface for
monitoring the host's resources and performing administrative tasks.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism
used by modern CPUs when a cache-miss is made on L1 CPU cache. If an
attacker can generate a load operation that would create a page fault, the
execution will continue speculatively with incorrect data from the fill
buffer while the data is fetched from higher level caches. This response
time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations
to improve the performance of writing data back to CPU caches. The write
operation is split into STA (STore Address) and STD (STore Data)
sub-operations. These sub-operations allow the processor to hand-off
address generation logic into these sub-operations for optimized writes.
Both of these sub-operations write to a shared distributed processor
structure called the 'processor store buffer'. As a result, an unprivileged
attacker could use this flaw to read private data resident within the CPU's
processor store buffer. (CVE-2018-12126)
* Microprocessors use a â\x{128}\x{152}load portâ\x{128}\x{153} subcomponent to perform load operations
from memory or IO. During a load operation, the load port receives data
from the memory or IO subsystem and then provides the data to the CPU
registers and operations in the CPUâ\x{128}\x{153}s pipelines. Stale load operations
results are stored in the 'load port' table until overwritten by newer
operations. Certain load-port operations triggered by an attacker can be
used to reveal data about previous stale requests leaking data back to the
attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative
execution may allow an authenticated user to potentially enable information
disclosure via a side channel with local access. (CVE-2019-11091)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/2974891
5. Bugs fixed (https://bugzilla.redhat.com/):
1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)
1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)
1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)
1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
6. Package List:
Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS:
Source:
redhat-release-virtualization-host-4.2-8.6.el7.src.rpm
redhat-virtualization-host-4.2-20190512.0.el7_6.src.rpm
noarch:
redhat-virtualization-host-image-update-4.2-20190512.0.el7_6.noarch.rpm
redhat-virtualization-host-image-update-placeholder-4.2-8.6.el7.noarch.rpm
x86_64:
redhat-release-virtualization-host-4.2-8.6.el7.x86_64.rpm
redhat-release-virtualization-host-content-4.2-8.6.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2018-12126
https://access.redhat.com/security/cve/CVE-2018-12127
https://access.redhat.com/security/cve/CVE-2018-12130
https://access.redhat.com/security/cve/CVE-2019-11091
https://access.redhat.com/security/vulnerabilities/mds
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
- --------------------------END INCLUDED TEXT--------------------
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