DEBIAN-CVE-2016-3158

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2016-3158
Published: 13 Apr 2016, 16:59
Last modified:28 Apr 2026, 20:15

Vulnerability Summary

Overall Risk (default)
low
15/100
CVSS Score
3.8 LOW
3.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Apr 2016, 16:59
Published
Vulnerability first disclosed
28 Apr 2026, 20:15
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.0•LOW•Score: 3.8CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Affected Systems

  • debian•xen

    < 4.8.0~rc3-1 | < 4.8.0~rc3-1 | < 4.8.0~rc3-1 | < 4.8.0~rc3-1

References (1)