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CVE-2013-2076

Status Candidate

Overview

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.

Related Files

Debian Security Advisory 3006-1
Posted Aug 18, 2014
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3006-1 - Multiple security issues have been discovered in the Xen virtualisation solution which may result in information leaks or denial of service.

tags | advisory, denial of service
systems | linux, debian
advisories | CVE-2013-1432, CVE-2013-1442, CVE-2013-2076, CVE-2013-2077, CVE-2013-2078, CVE-2013-2194, CVE-2013-2195, CVE-2013-2196, CVE-2013-2211, CVE-2013-4329, CVE-2013-4355, CVE-2013-4361, CVE-2013-4368, CVE-2013-4494, CVE-2013-4553, CVE-2014-1950, CVE-2014-2599, CVE-2014-3124, CVE-2014-4021
SHA-256 | 022c7dacd6753366685e6693c5aeb3e32a9dce17c24badf0fc135994da1dfee0
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