CVE-2013-1917

Publication date 13 May 2013

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Description

Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.

Read the notes from the security team

Status

Package Ubuntu Release Status
xen 13.10 saucy
Fixed 4.2.1-0ubuntu3.1
13.04 raring
Fixed 4.2.1-0ubuntu3.1
12.10 quantal
Fixed 4.1.3-3ubuntu1.5
12.04 LTS precise
Fixed 4.1.2-2ubuntu2.8
11.10 oneiric Ignored end of life
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
xen-3.1 13.10 saucy Not in release
13.04 raring Not in release
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 13.10 saucy Not in release
13.04 raring Not in release
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 13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
10.04 LTS lucid Ignored end of life
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

seth-arnold

only 64-bit paravirtualized guests on Intel CPUs

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

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