Debian DSA-2337-1 : xen - several vulnerabilities

high Nessus Plugin ID 56716
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


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


Several vulnerabilities were discovered in the Xen virtual machine hypervisor.

- CVE-2011-1166 A 64-bit guest can get one of its vCPUs into non-kernel mode without first providing a valid non-kernel pagetable, thereby locking up the host system.

- CVE-2011-1583, CVE-2011-3262 Local users can cause a denial of service and possibly execute arbitrary code via a crafted paravirtualised guest kernel image.

- CVE-2011-1898 When using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping, guest OS users can gain host OS privileges by writing to the interrupt injection registers.

The oldstable distribution (lenny) contains a different version of Xen not affected by these problems.


Upgrade the xen packages.

For the stable distribution (squeeze), this problem has been fixed in version 4.0.1-4.

See Also

Plugin Details

Severity: High

ID: 56716

File Name: debian_DSA-2337.nasl

Version: 1.14

Type: local

Agent: unix

Published: 11/7/2011

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Medium

Score: 6


Risk Factor: High

Base Score: 7.4

Temporal Score: 5.5

Vector: CVSS2#AV:A/AC:M/Au:S/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*, p-cpe:2.3:a:debian:debian_linux:xen:*:*:*:*:*:*:*

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/6/2011

Reference Information

CVE: CVE-2011-1898, CVE-2011-1166, CVE-2011-1583, CVE-2011-3262

BID: 48515, 48058, 47779

DSA: 2337