5.8 Medium
AI Score
Confidence
Low
6.5 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
HIGH
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:H/Au:S/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
26.0%
The translate_desc function in drivers/vhost/vhost.c in the Linux kernel before 3.7 does not properly handle cross-region descriptors, which allows guest OS users to obtain host OS privileges by leveraging KVM guest OS privileges.
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bd97120fc3d1a11f3124c7c9ba1d91f51829eb85
lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
rhn.redhat.com/errata/RHSA-2013-0496.html
rhn.redhat.com/errata/RHSA-2013-0579.html
rhn.redhat.com/errata/RHSA-2013-0882.html
rhn.redhat.com/errata/RHSA-2013-0928.html
www.kernel.org/pub/linux/kernel/v3.x/patch-3.7.bz2
www.mandriva.com/security/advisories?name=MDVSA-2013:176
www.openwall.com/lists/oss-security/2013/02/20/6
bugzilla.redhat.com/show_bug.cgi?id=912905
github.com/torvalds/linux/commit/bd97120fc3d1a11f3124c7c9ba1d91f51829eb85