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Last updated: 10/21/2014 11:27:14 PM

CVE Publication rate: 54.6

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Vulnerability Summary for CVE-2012-5513

Original release date: 12/13/2012
Last revised: 04/19/2014
Source: US-CERT/NIST

Overview

The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 6.9 (MEDIUM) (AV:L/AC:M/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

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External Source: SUSE
Name: openSUSE-SU-2012:1685
External Source: DEBIAN
Name: DSA-2582
External Source: SUSE
Name: SUSE-SU-2012:1606
External Source: SUSE
Name: openSUSE-SU-2013:0133
External Source: SECUNIA
Name: 51486
Type: Advisory
External Source: SECUNIA
Name: 51468
Type: Advisory
External Source: REDHAT
Name: RHSA-2012:1540
External Source: SECUNIA
Name: 51487
Type: Advisory
External Source: SUSE
Name: openSUSE-SU-2013:0636
External Source: SUSE
Name: SUSE-SU-2014:0446
External Source: SUSE
Name: SUSE-SU-2012:1615
External Source: SUSE
Name: openSUSE-SU-2013:0637
External Source: SECUNIA
Name: 55082
External Source: SUSE
Name: SUSE-SU-2014:0470
External Source: CONFIRM
Name: http://support.citrix.com/article/CTX135777
External Source: XF
Name: xen-xenmemexchange-priv-esc(80482)
External Source: GENTOO
Name: GLSA-201309-24
External Source: SUSE
Name: openSUSE-SU-2012:1687
External Source: OSVDB
Name: 88131
External Source: SECUNIA
Name: 51397
Type: Advisory
External Source: MLIST
Name: [oss-security] 20121203 Xen Security Advisory 29 (CVE-2012-5513) - XENMEM_exchange may overwrite hypervisor memory
External Source: BID
Name: 56797
External Source: SECUNIA
Name: 51495
Type: Advisory

Technical Details

Vulnerability Type (View All)