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CVE-2013-2076

CVE-2013-2076

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

EPSS 0.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • xen Debian:12

    Affected ranges
    • ECOSYSTEM: < 4.2.2-1

    Update to 4.2.2-1

  • xen Debian:13

    Affected ranges
    • ECOSYSTEM: < 4.2.2-1

    Update to 4.2.2-1

  • xen Debian:14

    Affected ranges
    • ECOSYSTEM: < 4.2.2-1

    Update to 4.2.2-1

Original sources

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