National Vulnerability Database (NVD) National Vulnerability Database (CVE-2012-4544)

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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):

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 serviceUnknown

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External Source: XF

Name: xen-pvdomainbuilder-dos(79617)

Hyperlink:http://xforce.iss.net/xforce/xfdb/79617

External Source: SECTRACK

Name: 1027699

Hyperlink:http://www.securitytracker.com/id?1027699

External Source: BID

Name: 56289

Hyperlink:http://www.securityfocus.com/bid/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

Hyperlink:http://www.openwall.com/lists/oss-security/2012/10/26/3