Debian DSA-2636-2 : xen - several vulnerabilities

medium Nessus Plugin ID 64973


The remote Debian host is missing a security-related update.


Multiple vulnerabilities have been discovered in the Xen hypervisor.
The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2012-4544 Insufficient validation of kernel or ramdisk sizes in the Xen PV domain builder could result in denial of service.

- CVE-2012-5511 Several HVM control operations performed insufficient validation of input, which could result in denial of service through resource exhaustion.

- CVE-2012-5634 Incorrect interrupt handling when using VT-d hardware could result in denial of service.

- CVE-2013-0153 Insufficient restriction of interrupt access could result in denial of service.


Upgrade the xen packages.

For the stable distribution (squeeze), these problems have been fixed in version 4.0.1-5.8.

See Also

Plugin Details

Severity: Medium

ID: 64973

File Name: debian_DSA-2636.nasl

Version: 1.11

Type: local

Agent: unix

Published: 3/4/2013

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:xen, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/3/2013

Reference Information

CVE: CVE-2012-4544, CVE-2012-5511, CVE-2012-5634, CVE-2013-0153

BID: 56289, 56796, 57223, 57745

DSA: 2636