CVE-2012-2625: Xen

Low severity, CVSS 2.7. EPSS: 0.9% chance of exploitation in the next 30 days.

The PyGrub boot loader in Xen unstable before changeset 25589:60f09d1ab1fe, 4.2.x, and 4.1.x allows local para-virtualized guest users to cause a denial of service (memory consumption) via a large (1) bzip2 or (2) lzma compressed kernel image.

Affected products

• Xen Xen: version 4.1.0 only; version 4.1.1 only; version 4.1.2 only; version 4.1.3 only; version 4.2.0 only
• Xen Xen-Unstable: before 25589\:60f09d1ab1fe (fixed in 25589\:60f09d1ab1fe)

Published 2012-10-31. Last modified 2026-06-16.