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CVE-2015-7311

Publication date 1 October 2015

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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

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

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