National Cyber Awareness System
Vulnerability Summary for CVE-2012-4544
Original release date:10/31/2012
Last revised:03/08/2013
Source:
US-CERT/NIST
Overview
The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, which allows local guest administrators to cause a denial of service (domain 0 memory consumption) via a crafted (a) kernel or (b) ramdisk.
Impact
CVSS Severity (version 2.0):
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 serviceUnknown
References to Advisories, Solutions, and Tools
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External Source: XF
Name: xen-pvdomainbuilder-dos(79617)
External Source: SECTRACK
Name: 1027699
External Source: BID
Name: 56289
External Source: MLIST
Name: [oss-security] 20121026 Xen Security Advisory 25 (CVE-2012-4544) - Xen domain builder Out-of-memory due to malicious kernel/ramdisk
External Source: DEBIAN
Name: DSA-2636
External Source: SECUNIA
Name: 51071
Type: Advisory
External Source: REDHAT
Name: RHSA-2013:0241
External Source: OSVDB
Name: 86619
External Source: SUSE
Name: openSUSE-SU-2012:1572
External Source: SUSE
Name: SUSE-SU-2012:1487
External Source: SUSE
Name: SUSE-SU-2012:1486