Description
The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://support.citrix.com/article/CTX202404 ↗
- http://www.securityfocus.com/bid/77366 ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html ↗
- http://xenbits.xen.org/xsa/advisory-148.html ↗
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html ↗
- https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt ↗
- http://www.debian.org/security/2015/dsa-3390 ↗
- http://www.securitytracker.com/id/1034032 ↗
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html ↗
- https://security.gentoo.org/glsa/201604-03 ↗