DEBIAN-CVE-2015-8555

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2015-8555
Published: 13 Apr 2016, 15:59
Last modified:28 Apr 2026, 20:14

Vulnerability Summary

Overall Risk (default)
medium
34/100
CVSS Score
8.6 HIGH
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, 15:59
Published
Vulnerability first disclosed
28 Apr 2026, 20:14
Last Modified
Vulnerability information updated

Description

Xen 4.6.x, 4.5.x, 4.4.x, 4.3.x, and earlier do not initialize x86 FPU stack and XMM registers when XSAVE/XRSTOR are not used to manage guest extended register state, which allows local guest domains to obtain sensitive information from other domains via unspecified vectors.

CVSS Metrics

  • v3.0•HIGH•Score: 8.6CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/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)