SUSE SLES11 Security Update : xen (SUSE-SU-2014:1710-1)

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote SUSE host is missing one or more security updates.

Description :

xen was updated to fix 14 security issues :

- Guest effectable page reference leak in
MMU_MACHPHYS_UPDATE handling (CVE-2014-9030).

- Insufficient bounding of 'REP MOVS' to MMIO emulated
inside the hypervisor (CVE-2014-8867).

- Missing privilege level checks in x86 HLT, LGDT, LIDT,
and LMSW emulation (CVE-2014-7155).

- Hypervisor heap contents leaked to guests
(CVE-2014-4021).

- Missing privilege level checks in x86 emulation of far
branches (CVE-2014-8595).

- Insufficient restrictions on certain MMU update
hypercalls (CVE-2014-8594).

- Intel VT-d Interrupt Remapping engines can be evaded by
native NMI interrupts (CVE-2013-3495).

- Missing privilege level checks in x86 emulation of
software interrupts (CVE-2014-7156).

- Race condition in HVMOP_track_dirty_vram
(CVE-2014-7154).

- Improper MSR range used for x2APIC emulation
(CVE-2014-7188).

- HVMOP_set_mem_type allows invalid P2M entries to be
created (CVE-2014-3124).

- HVMOP_set_mem_access is not preemptible (CVE-2014-2599).

- Excessive checking in compatibility mode hypercall
argument translation (CVE-2014-8866).

- Guest user mode triggerable VM exits not handled by
hypervisor (bnc#903850).

This non-security bug was fixed :

- Increase limit domUloader to 32MB (bnc#901317).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

See also :

http://www.nessus.org/u?a4ffbe55
http://support.novell.com/security/cve/CVE-2013-3495.html
http://support.novell.com/security/cve/CVE-2014-2599.html
http://support.novell.com/security/cve/CVE-2014-3124.html
http://support.novell.com/security/cve/CVE-2014-4021.html
http://support.novell.com/security/cve/CVE-2014-7154.html
http://support.novell.com/security/cve/CVE-2014-7155.html
http://support.novell.com/security/cve/CVE-2014-7156.html
http://support.novell.com/security/cve/CVE-2014-7188.html
http://support.novell.com/security/cve/CVE-2014-8594.html
http://support.novell.com/security/cve/CVE-2014-8595.html
http://support.novell.com/security/cve/CVE-2014-8866.html
http://support.novell.com/security/cve/CVE-2014-8867.html
http://support.novell.com/security/cve/CVE-2014-9030.html
https://bugzilla.suse.com/show_bug.cgi?id=826717
https://bugzilla.suse.com/show_bug.cgi?id=867910
https://bugzilla.suse.com/show_bug.cgi?id=875668
https://bugzilla.suse.com/show_bug.cgi?id=880751
https://bugzilla.suse.com/show_bug.cgi?id=895798
https://bugzilla.suse.com/show_bug.cgi?id=895799
https://bugzilla.suse.com/show_bug.cgi?id=895802
https://bugzilla.suse.com/show_bug.cgi?id=897657
https://bugzilla.suse.com/show_bug.cgi?id=901317
https://bugzilla.suse.com/show_bug.cgi?id=903850
https://bugzilla.suse.com/show_bug.cgi?id=903967
https://bugzilla.suse.com/show_bug.cgi?id=903970
https://bugzilla.suse.com/show_bug.cgi?id=905465
https://bugzilla.suse.com/show_bug.cgi?id=905467
https://bugzilla.suse.com/show_bug.cgi?id=906439
http://www.nessus.org/u?08a0043b

Solution :

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 11 SP2 LTSS :

zypper in -t patch slessp2-xen-11sp2-20141204-10081

To bring your system up-to-date, use 'zypper patch'.

Risk factor :

High / CVSS Base Score : 8.3
(CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.1
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

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