Low severity3.8NVD Advisory· Published Apr 13, 2016· Updated May 6, 2026
CVE-2016-3158
CVE-2016-3158
Description
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.
Affected products
5cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*
- cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
10- xenbits.xen.org/xsa/xsa172-4.3.patchnvdPatch
- xenbits.xen.org/xsa/xsa172.patchnvdPatch
- lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.htmlnvdThird Party Advisory
- lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.htmlnvdThird Party Advisory
- www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlnvdVendor Advisory
- www.securityfocus.com/bid/85714nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1035435nvdThird Party AdvisoryVDB Entry
- xenbits.xen.org/xsa/advisory-172.htmlnvdVendor Advisory
- support.citrix.com/article/CTX209443nvd
- www.debian.org/security/2016/dsa-3554nvd
News mentions
0No linked articles in our index yet.