VDB
CVE-2016-3158
CVE-2016-3158
PUBLISHED
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.
EPSS 0.04% · 11.1th percentile
Risk Scores
EPSS Score
0.04%
11.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:14.04:LTS | xen | 4.4.2-0ubuntu0.14.04.5, 4.4.1-0ubuntu0.14.04.4, 4.4.1-0ubuntu0.14.04.5 |
| Ubuntu:16.04:LTS | xen | 4.5.1-0ubuntu1, 4.5.1-0ubuntu2, 4.6.0-1ubuntu1 |
Timeline
- Apr 13, 2016 CVE Published
- Feb 4, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 20, 2022 EPSS Score
- Jul 12, 2022 EPSS Score
- Sep 3, 2022 EPSS Score
- Oct 26, 2022 EPSS Score
- Dec 18, 2022 EPSS Score
- Feb 8, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 2, 2023 EPSS Score
- May 25, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2016-3158 third-party-advisory
- http://xenbits.xen.org/xsa/advisory-172.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2016-3158 third-party-advisory