CVE-2015-7311

Publication date 1 October 2015

Last updated 24 July 2024

Ubuntu priority

Description

libxl in Xen 4.1.x through 4.6.x does not properly handle the readonly flag on disks when using the qemu-xen device model, which allows local guest users to write to a read-only disk image.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
xen	15.10 wily	Fixed 4.5.1-0ubuntu1.1
	15.04 vivid	Fixed 4.5.0-1ubuntu4.3
	14.04 LTS trusty	Fixed 4.4.2-0ubuntu0.14.04.3
	12.04 LTS precise	Not affected

How can I get the fixes?
What do statuses mean?
Patch details

Notes

seth-arnold

The patch may break deployed environments but those environments are currently not safe

Patch details

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

Package	Patch details
xen	Upstream: http://xenbits.xen.org/xsa/xsa142-4.5.patch Upstream: http://xenbits.xen.org/xsa/xsa142-4.6.patch

References

MITRE
NVD
Launchpad
Debian

Other references

http://xenbits.xen.org/xsa/advisory-142.html
https://www.cve.org/CVERecord?id=CVE-2015-7311