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[security-announce] SUSE-SU-2014:0411-1: important: Security update for Xen
SUSE Security Update: Security update for Xen
______________________________________________________________________________

Announcement ID: SUSE-SU-2014:0411-1
Rating: important
References: #787163 #813673 #813677 #823011 #840592 #842511
#848657 #849668 #853049
Cross-References: CVE-2012-4544 CVE-2013-1917 CVE-2013-1920
CVE-2013-2194 CVE-2013-2195 CVE-2013-2196
CVE-2013-4355 CVE-2013-4368 CVE-2013-4494
CVE-2013-4554 CVE-2013-6885
Affected Products:
SUSE Linux Enterprise Server 10 SP4 LTSS
______________________________________________________________________________

An update that fixes 11 vulnerabilities is now available.

Description:


The SUSE Linux Enterprise Server 10 Service Pack 4 LTSS Xen
hypervisor and toolset have been updated to fix various
security issues.

The following security issues have been addressed:

* XSA-82: CVE-2013-6885: The microcode on AMD 16h 00h
through 0Fh processors does not properly handle the
interaction between locked instructions and write-combined
memory types, which allows local users to cause a denial of
service (system hang) via a crafted application, aka the
errata 793 issue. (bnc#853049)
* XSA-76: CVE-2013-4554: Xen 3.0.3 through 4.1.x
(possibly 4.1.6.1), 4.2.x (possibly 4.2.3), and 4.3.x
(possibly 4.3.1) does not properly prevent access to
hypercalls, which allows local guest users to gain
privileges via a crafted application running in ring 1 or
2. (bnc#849668)
* XSA-73: CVE-2013-4494: Xen before 4.1.x, 4.2.x, and
4.3.x does not take the page_alloc_lock and
grant_table.lock in the same order, which allows local
guest administrators with access to multiple vcpus to cause
a denial of service (host deadlock) via unspecified
vectors. (bnc#848657)
* XSA-67: CVE-2013-4368: The outs instruction emulation
in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or
GS: segment override, uses an uninitialized variable as a
segment base, which allows local 64-bit PV guests to obtain
sensitive information (hypervisor stack content) via
unspecified vectors related to stale data in a segment
register. (bnc#842511)
* XSA-63: CVE-2013-4355: Xen 4.3.x and earlier does not
properly handle certain errors, which allows local HVM
guests to obtain hypervisor stack memory via a (1) port or
(2) memory mapped I/O write or (3) other unspecified
operations related to addresses without associated memory.
(bnc#840592)
* XSA-55: CVE-2013-2196: Multiple unspecified
vulnerabilities in the Elf parser (libelf) in Xen 4.2.x and
earlier allow local guest administrators with certain
permissions to have an unspecified impact via a crafted
kernel, related to "other problems" that are not
CVE-2013-2194 or CVE-2013-2195. (bnc#823011)
* XSA-55: CVE-2013-2195: The Elf parser (libelf) in Xen
4.2.x and earlier allow local guest administrators with
certain permissions to have an unspecified impact via a
crafted kernel, related to "pointer dereferences" involving
unexpected calculations. (bnc#823011)
* XSA-55: CVE-2013-2194: Multiple integer overflows in
the Elf parser (libelf) in Xen 4.2.x and earlier allow
local guest administrators with certain permissions to have
an unspecified impact via a crafted kernel. (bnc#823011)
* XSA-47: CVE-2013-1920: Xen 4.2.x, 4.1.x, and earlier,
when the hypervisor is running "under memory pressure" and
the Xen Security Module (XSM) is enabled, uses the wrong
ordering of operations when extending the per-domain event
channel tracking table, which causes a use-after-free and
allows local guest kernels to inject arbitrary events and
gain privileges via unspecified vectors. (bnc#813677)
* XSA-44: CVE-2013-1917: Xen 3.1 through 4.x, when
running 64-bit hosts on Intel CPUs, does not clear the NT
flag when using an IRET after a SYSENTER instruction, which
allows PV guest users to cause a denial of service
(hypervisor crash) by triggering a #GP fault, which is not
properly handled by another IRET instruction. (bnc#813673)
* XSA-25: CVE-2012-4544: The PV domain builder in Xen
4.2 and earlier does not validate the size of the kernel or
ramdisk (1) before or (2) after decompression, which allows
local guest administrators to cause a denial of service
(domain 0 memory consumption) via a crafted (a) kernel or
(b) ramdisk. (bnc#787163)

Security Issue references:

* CVE-2012-4544
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4544
>
* CVE-2013-1917
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1917
>
* CVE-2013-1920
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1920
>
* CVE-2013-2194
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2194
>
* CVE-2013-2195
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2195
>
* CVE-2013-2196
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2196
>
* CVE-2013-4355
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4355
>
* CVE-2013-4368
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4368
>
* CVE-2013-4494
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4494
>
* CVE-2013-4554
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4554
>
* CVE-2013-6885
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6885
>

Indications:

Everyone using the Xen hypervisor should update.

Special Instructions and Notes:

Please reboot the system after installing this update.


Package List:

- SUSE Linux Enterprise Server 10 SP4 LTSS (i586 x86_64):

xen-3.2.3_17040_46-0.7.1
xen-devel-3.2.3_17040_46-0.7.1
xen-doc-html-3.2.3_17040_46-0.7.1
xen-doc-pdf-3.2.3_17040_46-0.7.1
xen-doc-ps-3.2.3_17040_46-0.7.1
xen-kmp-debug-3.2.3_17040_46_2.6.16.60_0.103.13-0.7.1
xen-kmp-default-3.2.3_17040_46_2.6.16.60_0.103.13-0.7.1
xen-kmp-kdump-3.2.3_17040_46_2.6.16.60_0.103.13-0.7.1
xen-kmp-smp-3.2.3_17040_46_2.6.16.60_0.103.13-0.7.1
xen-libs-3.2.3_17040_46-0.7.1
xen-tools-3.2.3_17040_46-0.7.1
xen-tools-domU-3.2.3_17040_46-0.7.1
xen-tools-ioemu-3.2.3_17040_46-0.7.1

- SUSE Linux Enterprise Server 10 SP4 LTSS (x86_64):

xen-libs-32bit-3.2.3_17040_46-0.7.1

- SUSE Linux Enterprise Server 10 SP4 LTSS (i586):

xen-kmp-bigsmp-3.2.3_17040_46_2.6.16.60_0.103.13-0.7.1
xen-kmp-kdumppae-3.2.3_17040_46_2.6.16.60_0.103.13-0.7.1
xen-kmp-vmi-3.2.3_17040_46_2.6.16.60_0.103.13-0.7.1
xen-kmp-vmipae-3.2.3_17040_46_2.6.16.60_0.103.13-0.7.1


References:

http://support.novell.com/security/cve/CVE-2012-4544.html
http://support.novell.com/security/cve/CVE-2013-1917.html
http://support.novell.com/security/cve/CVE-2013-1920.html
http://support.novell.com/security/cve/CVE-2013-2194.html
http://support.novell.com/security/cve/CVE-2013-2195.html
http://support.novell.com/security/cve/CVE-2013-2196.html
http://support.novell.com/security/cve/CVE-2013-4355.html
http://support.novell.com/security/cve/CVE-2013-4368.html
http://support.novell.com/security/cve/CVE-2013-4494.html
http://support.novell.com/security/cve/CVE-2013-4554.html
http://support.novell.com/security/cve/CVE-2013-6885.html
https://bugzilla.novell.com/787163
https://bugzilla.novell.com/813673
https://bugzilla.novell.com/813677
https://bugzilla.novell.com/823011
https://bugzilla.novell.com/840592
https://bugzilla.novell.com/842511
https://bugzilla.novell.com/848657
https://bugzilla.novell.com/849668
https://bugzilla.novell.com/853049

http://download.suse.com/patch/finder/?keywords=5877b583cb5aa03d08203d887cc47ee3

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