SUSE Security Update: Security update for Xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2014:0372-1
Rating:             important
References:         #831120 #833483 #842417 #846849 #848014 #849667 
                    #849668 #853049 #860163 #860302 #861256 
Cross-References:   CVE-2013-2212 CVE-2013-4553 CVE-2013-4554
                    CVE-2013-6885 CVE-2014-1666 CVE-2014-1891
                    CVE-2014-1892 CVE-2014-1893 CVE-2014-1894
                    CVE-2014-1950
Affected Products:
                    SUSE Linux Enterprise Server 11 SP2 LTSS
______________________________________________________________________________

   An update that solves 10 vulnerabilities and has one errata
   is now available.

Description:


   The SUSE Linux Enterprise Server 11 Service Pack 2 LTSS Xen
   hypervisor and  toolset has been updated to fix various
   security issues and several bugs.

   The following security issues have been addressed:

   *

   XSA-88: CVE-2014-1950: Use-after-free vulnerability
   in the xc_cpupool_getinfo function in Xen 4.1.x through
   4.3.x, when using a multithreaded toolstack, does not
   properly handle a failure by the xc_cpumap_alloc function,
   which allows local users with access to management
   functions to cause a denial of service (heap corruption)
   and possibly gain privileges via unspecified vectors.
   (bnc#861256)

   *

   XSA-87: CVE-2014-1666: The do_physdev_op function in
   Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not
   properly restrict access to the (1) PHYSDEVOP_prepare_msix
   and (2) PHYSDEVOP_release_msix operations, which allows
   local PV guests to cause a denial of service (host or guest
   malfunction) or possibly gain privileges via unspecified
   vectors. (bnc#860302)

   *

   XSA-84: CVE-2014-1894: Xen 3.2 (and presumably
   earlier) exhibit both problems with the overflow issue
   being present for more than just the suboperations listed
   above. (bnc#860163)

   *

   XSA-84: CVE-2014-1892 CVE-2014-1893: Xen 3.3 through
   4.1, while not affected by the above overflow, have a
   different overflow issue on FLASK_{GET,SET}BOOL and expose
   unreasonably large memory allocation to aribitrary guests.
   (bnc#860163)

   *

   XSA-84: CVE-2014-1891: The FLASK_{GET,SET}BOOL,
   FLASK_USER and FLASK_CONTEXT_TO_SID suboperations of the
   flask hypercall are vulnerable to an integer overflow on
   the input size. The hypercalls attempt to allocate a buffer
   which is 1 larger than this size and is therefore
   vulnerable to integer overflow and an attempt to allocate
   then access a zero byte buffer. (bnc#860163)

   *

   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-74: CVE-2013-4553: The XEN_DOMCTL_getmemlist
   hypercall in Xen 3.4.x through 4.3.x (possibly 4.3.1) does
   not always obtain the page_alloc_lock and mm_rwlock in the
   same order, which allows local guest administrators to
   cause a denial of service (host deadlock). (bnc#849667)

   *

   XSA-60: CVE-2013-2212: The vmx_set_uc_mode function
   in Xen 3.3 through 4.3, when disabling chaches, allows
   local HVM guests with access to memory mapped I/O regions
   to cause a denial of service (CPU consumption and possibly
   hypervisor or guest kernel panic) via a crafted GFN range.
   (bnc#831120)

   Also the following non-security bugs have been fixed:

   * Boot Failure with xen kernel in UEFI mode with error
   "No memory for trampoline" (bnc#833483)
   * Fixed Xen hypervisor panic on 8-blades nPar with
   46-bit memory addressing. (bnc#848014)
   * In HP's UEFI x86_64 platform and sles11sp3 with xen
   environment, dom0 will soft lockup on multiple blades nPar.
   (bnc#842417)
   * Soft lockup with PCI passthrough and many VCPUs
   (bnc#846849)

   Security Issue references:

   * CVE-2013-2212
   
   * CVE-2013-4553
   
   * CVE-2013-4554
   
   * CVE-2013-6885
   
   * CVE-2014-1666
   
   * CVE-2014-1891
   
   * CVE-2014-1892
   
   * CVE-2014-1893
   
   * CVE-2014-1894
   
   * CVE-2014-1950
   

Indications:

   Everyone using the Xen hypervisor should update.

Special Instructions and Notes:

   Please reboot the system after installing this update.

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 Server 11 SP2 LTSS:

      zypper in -t patch slessp2-xen-201402-8964

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


Package List:

   - SUSE Linux Enterprise Server 11 SP2 LTSS (i586 x86_64):

      xen-devel-4.1.6_06-0.5.1
      xen-kmp-default-4.1.6_06_3.0.101_0.7.17-0.5.1
      xen-kmp-trace-4.1.6_06_3.0.101_0.7.17-0.5.1
      xen-libs-4.1.6_06-0.5.1
      xen-tools-domU-4.1.6_06-0.5.1

   - SUSE Linux Enterprise Server 11 SP2 LTSS (x86_64):

      xen-4.1.6_06-0.5.1
      xen-doc-html-4.1.6_06-0.5.1
      xen-doc-pdf-4.1.6_06-0.5.1
      xen-libs-32bit-4.1.6_06-0.5.1
      xen-tools-4.1.6_06-0.5.1

   - SUSE Linux Enterprise Server 11 SP2 LTSS (i586):

      xen-kmp-pae-4.1.6_06_3.0.101_0.7.17-0.5.1


References:

   https://www.suse.com/security/cve/CVE-2013-2212.html
   https://www.suse.com/security/cve/CVE-2013-4553.html
   https://www.suse.com/security/cve/CVE-2013-4554.html
   https://www.suse.com/security/cve/CVE-2013-6885.html
   https://www.suse.com/security/cve/CVE-2014-1666.html
   https://www.suse.com/security/cve/CVE-2014-1891.html
   https://www.suse.com/security/cve/CVE-2014-1892.html
   https://www.suse.com/security/cve/CVE-2014-1893.html
   https://www.suse.com/security/cve/CVE-2014-1894.html
   https://www.suse.com/security/cve/CVE-2014-1950.html
   https://bugzilla.novell.com/831120
   https://bugzilla.novell.com/833483
   https://bugzilla.novell.com/842417
   https://bugzilla.novell.com/846849
   https://bugzilla.novell.com/848014
   https://bugzilla.novell.com/849667
   https://bugzilla.novell.com/849668
   https://bugzilla.novell.com/853049
   https://bugzilla.novell.com/860163
   https://bugzilla.novell.com/860302
   https://bugzilla.novell.com/861256
   https://scc.suse.com:443/patches/

SuSE: 2014:0372-1: important: Xen

March 14, 2014
An update that solves 10 vulnerabilities and has one errata An update that solves 10 vulnerabilities and has one errata An update that solves 10 vulnerabilities and has one errata ...

Summary

The SUSE Linux Enterprise Server 11 Service Pack 2 LTSS Xen hypervisor and toolset has been updated to fix various security issues and several bugs. The following security issues have been addressed: * XSA-88: CVE-2014-1950: Use-after-free vulnerability in the xc_cpupool_getinfo function in Xen 4.1.x through 4.3.x, when using a multithreaded toolstack, does not properly handle a failure by the xc_cpumap_alloc function, which allows local users with access to management functions to cause a denial of service (heap corruption) and possibly gain privileges via unspecified vectors. (bnc#861256) * XSA-87: CVE-2014-1666: The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict access to the (1) PHYSDEVOP_prepare_msix and (2) PHYSDEVOP_release_msix operations, which allows local PV guests to cause a denial of service (host or guest malfunction) or possibly gain privileges...

Read the Full Advisory

References

#831120 #833483 #842417 #846849 #848014 #849667

#849668 #853049 #860163 #860302 #861256

Cross- CVE-2013-2212 CVE-2013-4553 CVE-2013-4554

CVE-2013-6885 CVE-2014-1666 CVE-2014-1891

CVE-2014-1892 CVE-2014-1893 CVE-2014-1894

CVE-2014-1950

Affected Products:

SUSE Linux Enterprise Server 11 SP2 LTSS

https://www.suse.com/security/cve/CVE-2013-2212.html

https://www.suse.com/security/cve/CVE-2013-4553.html

https://www.suse.com/security/cve/CVE-2013-4554.html

https://www.suse.com/security/cve/CVE-2013-6885.html

https://www.suse.com/security/cve/CVE-2014-1666.html

https://www.suse.com/security/cve/CVE-2014-1891.html

https://www.suse.com/security/cve/CVE-2014-1892.html

https://www.suse.com/security/cve/CVE-2014-1893.html

https://www.suse.com/security/cve/CVE-2014-1894.html

https://www.suse.com/security/cve/CVE-2014-1950.html

https://bugzilla.novell.com/831120

https:/...

Read the Full Advisory

Severity
Announcement ID: SUSE-SU-2014:0372-1
Rating: important

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