vulnerability
FreeBSD: VID-e839ca04-b40d-11e5-9728-002590263bf5 (CVE-2015-8555): xen-kernel -- information leak in legacy x86 FPU/XMM initialization
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Jan 6, 2016 | Dec 10, 2025 | Dec 10, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Jan 6, 2016
Added
Dec 10, 2025
Modified
Dec 10, 2025
Description
The Xen Project reports: When XSAVE/XRSTOR are not in use by Xen to manage guest extended register state, the initial values in the FPU stack and XMM registers seen by the guest upon first use are those left there by the previous user of those registers. A malicious domain may be able to leverage this to obtain sensitive information such as cryptographic keys from another domain.
Solution
freebsd-upgrade-package-xen-kernel
NEW
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