Vulnerability Details CVE-2015-8555
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 71.5%
CVSS Severity
CVSS v3 Score 8.6
CVSS v2 Score 5.0
References
- http://support.citrix.com/article/CTX203879
- http://www.debian.org/security/2016/dsa-3519
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/79543
- http://www.securitytracker.com/id/1034477
- http://xenbits.xen.org/xsa/advisory-165.html
- https://security.gentoo.org/glsa/201604-03
- http://support.citrix.com/article/CTX203879
- http://www.debian.org/security/2016/dsa-3519
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/79543
- http://www.securitytracker.com/id/1034477
- http://xenbits.xen.org/xsa/advisory-165.html
- https://security.gentoo.org/glsa/201604-03
Products affected by CVE-2015-8555
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cpe:2.3:a:citrix:xenserver:6.0
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cpe:2.3:o:xen:xen:4.3.0
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cpe:2.3:o:xen:xen:4.3.1
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cpe:2.3:o:xen:xen:4.3.2
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cpe:2.3:o:xen:xen:4.3.3
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cpe:2.3:o:xen:xen:4.3.4
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cpe:2.3:o:xen:xen:4.4.0
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cpe:2.3:o:xen:xen:4.4.1
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cpe:2.3:o:xen:xen:4.4.2
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cpe:2.3:o:xen:xen:4.4.3
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cpe:2.3:o:xen:xen:4.4.4
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cpe:2.3:o:xen:xen:4.5.0
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cpe:2.3:o:xen:xen:4.5.1
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cpe:2.3:o:xen:xen:4.5.2
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cpe:2.3:o:xen:xen:4.5.3
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cpe:2.3:o:xen:xen:4.6.0
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cpe:2.3:o:xen:xen:4.6.1