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AUSCERT External Security Bulletin Redistribution
ESB-2018.3578
Linux kernel vulnerabilities
15 November 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: linux
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Root Compromise -- Existing Account
Access Privileged Data -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-16658 CVE-2018-9363 CVE-2017-16649
CVE-2017-13168 CVE-2016-9588
Reference: ESB-2018.2831
ESB-2018.1046
ESB-2017.3104
ESB-2017.0497
Original Bulletin:
http://www.ubuntu.com/usn/usn-3822-1
http://www.ubuntu.com/usn/usn-3822-2
Comment: This bulletin contains two (2) Ubuntu security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
==========================================================================
Ubuntu Security Notice USN-3822-1
November 14, 2018
linux vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- - linux: Linux kernel
Details:
Jim Mattson discovered that the KVM implementation in the Linux kernel
mismanages the #BP and #OF exceptions. A local attacker in a guest virtual
machine could use this to cause a denial of service (guest OS crash).
(CVE-2016-9588)
It was discovered that the generic SCSI driver in the Linux kernel did not
properly enforce permissions on kernel memory access. A local attacker
could use this to expose sensitive information or possibly elevate
privileges. (CVE-2017-13168)
Andrey Konovalov discovered that the CDC USB Ethernet driver did not
properly validate device descriptors. A physically proximate attacker could
use this to cause a denial of service (system crash). (CVE-2017-16649)
It was discovered that an integer overflow existed in the CD-ROM driver of
the Linux kernel. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2018-16658)
It was discovered that an integer overflow existed in the HID Bluetooth
implementation in the Linux kernel that could lead to a buffer overwrite.
An attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2018-9363)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
linux-image-3.13.0-162-generic 3.13.0-162.212
linux-image-3.13.0-162-generic-lpae 3.13.0-162.212
linux-image-3.13.0-162-lowlatency 3.13.0-162.212
linux-image-3.13.0-162-powerpc-e500 3.13.0-162.212
linux-image-3.13.0-162-powerpc-e500mc 3.13.0-162.212
linux-image-3.13.0-162-powerpc-smp 3.13.0-162.212
linux-image-3.13.0-162-powerpc64-emb 3.13.0-162.212
linux-image-3.13.0-162-powerpc64-smp 3.13.0-162.212
linux-image-generic 3.13.0.162.172
linux-image-generic-lpae 3.13.0.162.172
linux-image-lowlatency 3.13.0.162.172
linux-image-powerpc-e500 3.13.0.162.172
linux-image-powerpc-e500mc 3.13.0.162.172
linux-image-powerpc-smp 3.13.0.162.172
linux-image-powerpc64-emb 3.13.0.162.172
linux-image-powerpc64-smp 3.13.0.162.172
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://usn.ubuntu.com/usn/usn-3822-1
CVE-2016-9588, CVE-2017-13168, CVE-2017-16649, CVE-2018-16658,
CVE-2018-9363
Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-162.212
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v--------------------------------------------------------------------------------
==========================================================================
Ubuntu Security Notice USN-3822-2
November 14, 2018
linux-lts-trusty vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 12.04 ESM
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- - linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM
Details:
USN-3822-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu
12.04 ESM.
Jim Mattson discovered that the KVM implementation in the Linux kernel
mismanages the #BP and #OF exceptions. A local attacker in a guest virtual
machine could use this to cause a denial of service (guest OS crash).
(CVE-2016-9588)
It was discovered that the generic SCSI driver in the Linux kernel did not
properly enforce permissions on kernel memory access. A local attacker
could use this to expose sensitive information or possibly elevate
privileges. (CVE-2017-13168)
Andrey Konovalov discovered that the CDC USB Ethernet driver did not
properly validate device descriptors. A physically proximate attacker could
use this to cause a denial of service (system crash). (CVE-2017-16649)
It was discovered that an integer overflow existed in the CD-ROM driver of
the Linux kernel. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2018-16658)
It was discovered that an integer overflow existed in the HID Bluetooth
implementation in the Linux kernel that could lead to a buffer overwrite.
An attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2018-9363)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
linux-image-3.13.0-162-generic 3.13.0-162.212~precise1
linux-image-3.13.0-162-generic-lpae 3.13.0-162.212~precise1
linux-image-generic-lpae-lts-trusty 3.13.0.162.152
linux-image-generic-lts-trusty 3.13.0.162.152
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://usn.ubuntu.com/usn/usn-3822-2
https://usn.ubuntu.com/usn/usn-3822-1
CVE-2016-9588, CVE-2017-13168, CVE-2017-16649, CVE-2018-16658,
CVE-2018-9363
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