Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2019.0030
SUSE Security Update: Security update for xen
2 January 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: xen
Publisher: SUSE
Operating System: SUSE
Impact/Access: Increased Privileges -- Existing Account
Access Privileged Data -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-19966 CVE-2018-19965 CVE-2018-19962
CVE-2018-19961 CVE-2018-18883 CVE-2018-15470
CVE-2018-15469 CVE-2018-15468 CVE-2018-3646
Reference: ASB-2018.0204
ESB-2018.3934
ESB-2018.2344
ESB-2018.2343
Original Bulletin:
https://www.suse.com/support/update/announcement/2018/suse-su-20184300-1/
- --------------------------BEGIN INCLUDED TEXT--------------------
SUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2018:4300-1
Rating: important
References: #1027519 #1078292 #1091107 #1094508 #1103275
#1103276 #1103279 #1105528 #1108940 #1114405
#1115040 #1115045 #1115047
Cross-References: CVE-2018-15468 CVE-2018-15469 CVE-2018-15470
CVE-2018-18883 CVE-2018-19961 CVE-2018-19962
CVE-2018-19965 CVE-2018-19966 CVE-2018-3646
Affected Products:
SUSE Linux Enterprise Module for Server Applications 15
SUSE Linux Enterprise Module for Basesystem 15
______________________________________________________________________________
An update that solves 9 vulnerabilities and has four fixes
is now available.
Description:
This update for xen fixes the following issues:
Update to Xen 4.10.2 bug fix release (bsc#1027519).
Security vulnerabilities fixed:
- CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient
TLB flushing with AMD IOMMUs, which potentially allowed a guest to
escalate its privileges, may cause a Denial of Service (DoS) affecting
the entire host, or may be able to access data it is not supposed to
access. (XSA-275) (bsc#1115040)
- CVE-2018-19965: Fixed an issue related to the INVPCID instruction in
case non-canonical addresses are accessed, which may allow a guest to
cause Xen to crash, resulting in a Denial of Service (DoS) affecting the
entire host. (XSA-279) (bsc#1115045)
- CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240,
which conflicted with shadow paging and allowed a guest to cause Xen to
crash, resulting in a Denial of Service (DoS). (XSA-280) (bsc#1115047)
- CVE-2018-18883: Fixed an issue related to inproper restriction of nested
VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial
of Service (DoS). (XSA-278) (bsc#1114405)
- CVE-2018-15468: Fixed incorrect MSR_DEBUGCTL handling, which allowed
guests to enable Branch Trace Store and may cause a Denial of Service
(DoS) of the entire host. (XSA-269) (bsc#1103276)
- CVE-2018-15469: Fixed use of v2 grant tables on ARM, which were not
properly implemented and may cause a Denial of Service (DoS). (XSA-268)
(bsc#1103275)
- CVE-2018-15470: Fixed an issue in the logic in oxenstored for handling
writes, which allowed a guest to write memory unbounded leading to
system-wide Denial
of Service (DoS). (XSA-272) (bsc#1103279)
- CVE-2018-3646: Mitigations for VMM aspects of L1 Terminal Fault
(XSA-273) (bsc#1091107)
Other bugs fixed:
- Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940)
- Fixed an issue with xpti=no-dom0 not working as expected (bsc#1105528)
- Fixed a kernel oops related to fs/dcache.c called by
d_materialise_unique() (bsc#1094508)
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- SUSE Linux Enterprise Module for Server Applications 15:
zypper in -t patch SUSE-SLE-Module-Server-Applications-15-2018-3063=1
- SUSE Linux Enterprise Module for Basesystem 15:
zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-3063=1
Package List:
- SUSE Linux Enterprise Module for Server Applications 15 (x86_64):
xen-4.10.2_04-3.9.1
xen-debugsource-4.10.2_04-3.9.1
xen-devel-4.10.2_04-3.9.1
xen-tools-4.10.2_04-3.9.1
xen-tools-debuginfo-4.10.2_04-3.9.1
- SUSE Linux Enterprise Module for Basesystem 15 (x86_64):
xen-debugsource-4.10.2_04-3.9.1
xen-libs-4.10.2_04-3.9.1
xen-libs-debuginfo-4.10.2_04-3.9.1
xen-tools-domU-4.10.2_04-3.9.1
xen-tools-domU-debuginfo-4.10.2_04-3.9.1
References:
https://www.suse.com/security/cve/CVE-2018-15468.html
https://www.suse.com/security/cve/CVE-2018-15469.html
https://www.suse.com/security/cve/CVE-2018-15470.html
https://www.suse.com/security/cve/CVE-2018-18883.html
https://www.suse.com/security/cve/CVE-2018-19961.html
https://www.suse.com/security/cve/CVE-2018-19962.html
https://www.suse.com/security/cve/CVE-2018-19965.html
https://www.suse.com/security/cve/CVE-2018-19966.html
https://www.suse.com/security/cve/CVE-2018-3646.html
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1078292
https://bugzilla.suse.com/1091107
https://bugzilla.suse.com/1094508
https://bugzilla.suse.com/1103275
https://bugzilla.suse.com/1103276
https://bugzilla.suse.com/1103279
https://bugzilla.suse.com/1105528
https://bugzilla.suse.com/1108940
https://bugzilla.suse.com/1114405
https://bugzilla.suse.com/1115040
https://bugzilla.suse.com/1115045
https://bugzilla.suse.com/1115047
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=HoSG
-----END PGP SIGNATURE-----