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Last updated: 12/21/2014 2:27:05 PM

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Vulnerability Summary for CVE-2012-4537

Original release date: 11/21/2012
Last revised: 05/05/2014
Source: US-CERT/NIST

Overview

Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability."

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 2.1 (LOW) (AV:L/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: MLIST
Name: [oss-security] 20121113 Xen Security Advisory 22 (CVE-2012-4537) - Memory mapping failure DoS vulnerability
External Source: SUSE
Name: openSUSE-SU-2012:1573
External Source: SECUNIA
Name: 51324
External Source: XF
Name: xen-setp2mentry-dos(80024)
External Source: BID
Name: 56498
External Source: SUSE
Name: SUSE-SU-2014:0446
External Source: GENTOO
Name: GLSA-201309-24
External Source: SECUNIA
Name: 51468
External Source: OSVDB
Name: 87307
External Source: SUSE
Name: SUSE-SU-2012:1487
External Source: SUSE
Name: SUSE-SU-2012:1615
External Source: SECUNIA
Name: 55082
External Source: SECTRACK
Name: 1027761
External Source: SECUNIA
Name: 51413
External Source: REDHAT
Name: RHSA-2012:1540
External Source: DEBIAN
Name: DSA-2582
External Source: SECUNIA
Name: 51200
External Source: SUSE
Name: SUSE-SU-2014:0470
External Source: SUSE
Name: SUSE-SU-2012:1486
External Source: SECUNIA
Name: 51352
External Source: MLIST
Name: [Xen-announce] 20121113 Xen Security Advisory 22 (CVE-2012-4537) - Memory mapping failure DoS vulnerability
Type: Advisory
External Source: SUSE
Name: openSUSE-SU-2012:1572

Technical Details

Vulnerability Type (View All)