CVE-2012-4538

Publication date 24 November 2012

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Description

The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service (hypervisor crash) via unspecified vectors.

Read the notes from the security team

Status

Package Ubuntu Release Status
xen 12.10 quantal
Fixed 4.1.3-3ubuntu1.1
12.04 LTS precise
Fixed 4.1.2-2ubuntu2.3
11.10 oneiric
Fixed 4.1.1-2ubuntu4.3
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
Not affected
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
Not affected
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

seth-arnold

significant mitigating factors, may not be an issue for all sites

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
xen

References

Other references