CVE-2013-2076

Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*

History

21 Nov 2024, 01:50

Type Values Removed Values Added
References () http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html - () http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html -
References () http://secunia.com/advisories/55082 - () http://secunia.com/advisories/55082 -
References () http://security.gentoo.org/glsa/glsa-201309-24.xml - () http://security.gentoo.org/glsa/glsa-201309-24.xml -
References () http://www.debian.org/security/2014/dsa-3006 - () http://www.debian.org/security/2014/dsa-3006 -
References () http://www.openwall.com/lists/oss-security/2013/06/03/1 - () http://www.openwall.com/lists/oss-security/2013/06/03/1 -

07 Nov 2023, 02:14

Type Values Removed Values Added
Summary Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels. Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels.

Information

Published : 2013-08-28 21:55

Updated : 2024-11-21 01:50


NVD link : CVE-2013-2076

Mitre link : CVE-2013-2076

CVE.ORG link : CVE-2013-2076


JSON object : View

Products Affected

xen

  • xen
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor