CVE-2016-3159
Estado: ModificadaBaja (3.8)—
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
CVSS
- Versión: 3.0
- Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
- Puntuación base: 3.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.40%
- Percentil entre todas las CVEs puntuadas: 32
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (4)
CWE
- CWE-200, CWE-284
Referencias
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html
- http://support.citrix.com/article/CTX209443
- http://www.debian.org/security/2016/dsa-3554
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/85716
- http://www.securitytracker.com/id/1035435
- http://xenbits.xen.org/xsa/advisory-172.html
- http://xenbits.xen.org/xsa/xsa172.patch
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html
- http://support.citrix.com/article/CTX209443
- http://www.debian.org/security/2016/dsa-3554
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/85716
- http://www.securitytracker.com/id/1035435
- http://xenbits.xen.org/xsa/advisory-172.html
- http://xenbits.xen.org/xsa/xsa172.patch
JSON original (NVD)
Mostrar
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