CVE-2016-3158
Published: 13 April 2016
The xrstor function in arch/x86/xstate.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
Priority
CVSS 3 base score: 3.8
Status
Package | Release | Status |
---|---|---|
xen Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
precise |
Released
(4.1.6.1-0ubuntu0.12.04.11)
|
|
trusty |
Does not exist
(trusty was released [4.4.2-0ubuntu0.14.04.6])
|
|
wily |
Released
(4.5.1-0ubuntu1.4)
|
|
xenial |
Released
(4.6.0-1ubuntu4.1)
|
|
Binaries built from this source package are in Universe and so are supported by the community. |