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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html ↗
- http://www.debian.org/security/2016/dsa-3519 ↗
- http://www.securitytracker.com/id/1034477 ↗
- http://www.securityfocus.com/bid/79543 ↗
- http://xenbits.xen.org/xsa/advisory-165.html ↗
- https://security.gentoo.org/glsa/201604-03 ↗
- http://support.citrix.com/article/CTX203879 ↗