CVE-2015-8555

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.

References

https://security.gentoo.org/glsa/201604-03

http://xenbits.xen.org/xsa/advisory-165.html

http://www.securitytracker.com/id/1034477

http://www.securityfocus.com/bid/79543

http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

http://www.debian.org/security/2016/dsa-3519

http://support.citrix.com/article/CTX203879

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS