CVE-2016-3158
- State
- Published
- Severity
- Not scored
- Published
- Apr 13, 2016
- Updated
- Aug 5, 2024
- Reserved
- Mar 15, 2016
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- FEDORA-2016-5f196e4e4avendor-advisory
- 85714vdb-entry
- http://xenbits.xen.org/xsa/xsa172-4.3.patch
- http://xenbits.xen.org/xsa/advisory-172.html
- FEDORA-2016-e5432ca977vendor-advisory
- http://xenbits.xen.org/xsa/xsa172.patch
- 1035435vdb-entry
- http://support.citrix.com/article/CTX209443
- DSA-3554vendor-advisory
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