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CVE-2014-7156

Publication date 2 October 2014

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.

Read the notes from the security team

Status

Package Ubuntu Release Status
xen 15.04 vivid
Fixed 4.4.1-3ubuntu1
14.10 utopic
Fixed 4.4.0-0ubuntu8
14.04 LTS trusty
Fixed 4.4.0-0ubuntu5.2
12.04 LTS precise
Fixed 4.1.6.1-0ubuntu0.12.04.3
10.04 LTS lucid Not in release
xen-3.3 15.04 vivid Not in release
14.10 utopic Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Ignored end of life

Notes

mdeslaur

3.3+