CVE-2015-8555

xen: information leak in legacy x86 FPU/XMM initialization (XSA-165)

Published Apr 13, 2016 CVSS 3.0 · 8.6 High EPSS 2.3% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-479-1 xen security update
Debian DSA Debian DSA DSA-3519-1 xen security update
EUVD EUVD EUVD-2015-8435 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.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 6, 2024, 8:20 AM
Reserved
Dec 14, 2015, 12:00 AM
Status
Modified
Published
Apr 13, 2016, 3:59 PM
Modified
Jun 17, 2026, 12:34 AM
Severity
Low
Public date
Dec 17, 2015, 12:00 AM