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CVE-2015-7311

Published: 1 October 2015

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.

Notes

AuthorNote
seth-arnold
The patch may break deployed environments but those environments
are currently not safe

Priority

Medium

Status

Package Release Status
xen
Launchpad, Ubuntu, Debian
precise Not vulnerable
(4.1.6.1-0ubuntu0.12.04.6)
trusty
Released (4.4.2-0ubuntu0.14.04.3)
upstream Needed

vivid
Released (4.5.0-1ubuntu4.3)
wily
Released (4.5.1-0ubuntu1.1)
Patches:
upstream: http://xenbits.xen.org/xsa/xsa142-4.5.patch
upstream: http://xenbits.xen.org/xsa/xsa142-4.6.patch
Binaries built from this source package are in Universe and so are supported by the community.