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AUSCERT External Security Bulletin Redistribution
ESB-2017.2365
SUSE Security Update: Security update for xen
19 September 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: xen
Publisher: SUSE
Operating System: SUSE
Linux variants
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-14319 CVE-2017-14318 CVE-2017-14317
CVE-2017-14316
Original Bulletin:
https://www.suse.com/support/update/announcement/2017/suse-su-20172519-1/
Comment: This advisory references vulnerabilities in products which run on
platforms other than SUSE. It is recommended that administrators
running xen check for an updated version of the software for their
operating system.
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SUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2017:2519-1
Rating: important
References: #1027519 #1055695 #1056278 #1056280 #1056281
#1056282
Cross-References: CVE-2017-14316 CVE-2017-14317 CVE-2017-14318
CVE-2017-14319
Affected Products:
SUSE Linux Enterprise Software Development Kit 12-SP2
SUSE Linux Enterprise Server 12-SP2
SUSE Linux Enterprise Desktop 12-SP2
SUSE Container as a Service Platform ALL
______________________________________________________________________________
An update that solves four vulnerabilities and has two
fixes is now available.
Description:
This update for xen fixes several issues.
These security issues were fixed:
- CVE-2017-14316: Missing bound check in function `alloc_heap_pages` for
an internal array allowed attackers using crafted hypercalls to execute
arbitrary code within Xen (XSA-231, bsc#1056278)
- CVE-2017-14318: The function __gnttab_cache_flush missed a check for
grant tables, allowing a malicious guest to crash the host or for x86 PV
guests to potentially escalate privileges (XSA-232, bsc#1056280)
- CVE-2017-14317: A race in cxenstored may have cause a double-free
allowind for DoS of the xenstored daemon (XSA-233, bsc#1056281).
- CVE-2017-14319: An error while handling grant mappings allowed malicious
or buggy x86 PV guest to escalate its privileges or crash the hypervisor
(XSA-234, bsc#1056282).
These non-security issues were fixed:
- bsc#1055695: Fixed restoring updates for HVM guests for ballooned domUs
Patch Instructions:
To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:
- SUSE Linux Enterprise Software Development Kit 12-SP2:
zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-1558=1
- SUSE Linux Enterprise Server 12-SP2:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1558=1
- SUSE Linux Enterprise Desktop 12-SP2:
zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-1558=1
- SUSE Container as a Service Platform ALL:
zypper in -t patch SUSE-CAASP-ALL-2017-1558=1
To bring your system up-to-date, use "zypper patch".
Package List:
- SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 x86_64):
xen-debugsource-4.7.3_04-43.12.1
xen-devel-4.7.3_04-43.12.1
- SUSE Linux Enterprise Server 12-SP2 (x86_64):
xen-4.7.3_04-43.12.1
xen-debugsource-4.7.3_04-43.12.1
xen-doc-html-4.7.3_04-43.12.1
xen-libs-32bit-4.7.3_04-43.12.1
xen-libs-4.7.3_04-43.12.1
xen-libs-debuginfo-32bit-4.7.3_04-43.12.1
xen-libs-debuginfo-4.7.3_04-43.12.1
xen-tools-4.7.3_04-43.12.1
xen-tools-debuginfo-4.7.3_04-43.12.1
xen-tools-domU-4.7.3_04-43.12.1
xen-tools-domU-debuginfo-4.7.3_04-43.12.1
- SUSE Linux Enterprise Desktop 12-SP2 (x86_64):
xen-4.7.3_04-43.12.1
xen-debugsource-4.7.3_04-43.12.1
xen-libs-32bit-4.7.3_04-43.12.1
xen-libs-4.7.3_04-43.12.1
xen-libs-debuginfo-32bit-4.7.3_04-43.12.1
xen-libs-debuginfo-4.7.3_04-43.12.1
- SUSE Container as a Service Platform ALL (x86_64):
xen-debugsource-4.7.3_04-43.12.1
xen-libs-4.7.3_04-43.12.1
xen-libs-debuginfo-4.7.3_04-43.12.1
xen-tools-domU-4.7.3_04-43.12.1
xen-tools-domU-debuginfo-4.7.3_04-43.12.1
References:
https://www.suse.com/security/cve/CVE-2017-14316.html
https://www.suse.com/security/cve/CVE-2017-14317.html
https://www.suse.com/security/cve/CVE-2017-14318.html
https://www.suse.com/security/cve/CVE-2017-14319.html
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1055695
https://bugzilla.suse.com/1056278
https://bugzilla.suse.com/1056280
https://bugzilla.suse.com/1056281
https://bugzilla.suse.com/1056282
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