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CVE-2013-1920

Publication date 12 April 2013

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Xen 4.2.x, 4.1.x, and earlier, when the hypervisor is running "under memory pressure" and the Xen Security Module (XSM) is enabled, uses the wrong ordering of operations when extending the per-domain event channel tracking table, which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors.

Read the notes from the security team

Status

Package Ubuntu Release Status
xen 12.10 quantal
Not affected
12.04 LTS precise
Not affected
11.10 oneiric
Not affected
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
xen-3.1 12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
10.04 LTS lucid Not in release
8.04 LTS hardy Ignored end of life
xen-3.2 12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
10.04 LTS lucid Not in release
8.04 LTS hardy Ignored end of life
xen-3.3 12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
10.04 LTS lucid
Not affected
8.04 LTS hardy Not in release

Notes

mdeslaur

hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary