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Last updated: 4/23/2014

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Vulnerability Summary for CVE-2012-4544

Original release date: 10/31/2012
Last revised: 04/19/2014
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):
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: SUSE
Name: SUSE-SU-2012:1487
External Source: SUSE
Name: SUSE-SU-2014:0446
External Source: SUSE
Name: openSUSE-SU-2012:1572
External Source: DEBIAN
Name: DSA-2636
External Source: FEDORA
Name: FEDORA-2012-17135
External Source: SUSE
Name: SUSE-SU-2014:0411
External Source: SECTRACK
Name: 1027699
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: OSVDB
Name: 86619
External Source: SUSE
Name: SUSE-SU-2012:1486
External Source: REDHAT
Name: RHSA-2013:0241
External Source: SECUNIA
Name: 51413
External Source: FEDORA
Name: FEDORA-2012-17204
External Source: SUSE
Name: SUSE-SU-2014:0470
External Source: SECUNIA
Name: 51071
Type: Advisory
External Source: SECUNIA
Name: 51324
External Source: FEDORA
Name: FEDORA-2012-17408
External Source: SECUNIA
Name: 51352
External Source: XF
Name: xen-pvdomainbuilder-dos(79617)
External Source: BID
Name: 56289

Technical Details

Vulnerability Type (View All)