CVE-2015-7311

NameCVE-2015-7311
Descriptionlibxl 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-3414-1
Debian Bugs823620

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)bullseye4.14.6-1fixed
bullseye (security)4.14.5+94-ge49571868d-1fixed
bookworm4.17.3+10-g091466ba55-1~deb12u1fixed
sid, trixie4.17.3+36-g54dacb5c02-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensourcesqueeze(not affected)
xensourcejessie4.4.1-9+deb8u3DSA-3414-1
xensource(unstable)4.8.0~rc3-1823620

Notes

[wheezy] - xen <no-dsa> (Minor issue, xl not used in wheezy)
[squeeze] - xen <not-affected> (Only affects 4.1 and later)
http://xenbits.xen.org/xsa/advisory-142.html

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