CVE-2016-3158 is a low-severity vulnerability affecting Xen 4.x on AMD64 processors, specifically in Fedora and Oracle Xen distributions. It allows a local guest OS user to potentially extract sensitive register content from another guest due to improper handling of the FSW.ES bit by the xrstor function, stemming from an incorrect fix for CVE-2013-2076. The CVSS score is 3.8 (LOW), indicating a local attack vector with low complexity and a low impact on confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.4.0CPE matchmatch criteria | cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | ||
22CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* | ||
23CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* | ||
3.3CPE matchmatch criteria | cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:* | ||
3.4CPE matchmatch criteria | cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.