| Description: | Summary:
The remote host is missing an update for the 'Xen' package(s) announced via the SUSE-SU-2014:0372-1 advisory.
Vulnerability Insight:
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:
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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)
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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)
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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)
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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)
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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 ... [Please see the references for more information on the vulnerabilities]
Affected Software/OS:
'Xen' package(s) on SUSE Linux Enterprise Server 11-SP2.
Solution:
Please install the updated package(s).
CVSS Score:
8.3
CVSS Vector:
AV:A/AC:L/Au:N/C:C/I:C/A:C
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