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CVE-2014-7155

CVE-2014-7155

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

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.

EPSS 1.0% · 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: < 4.4.1-3

    Update to 4.4.1-3

  • xen Debian:13

    Affected ranges
    • ECOSYSTEM: < 4.4.1-3

    Update to 4.4.1-3

  • xen Debian:14

    Affected ranges
    • ECOSYSTEM: < 4.4.1-3

    Update to 4.4.1-3

  • xen Ubuntu:14.04:LTS

    Versions
    • 4.3.0-1ubuntu1
    • 4.3.0-1ubuntu2
    • 4.3.0-1ubuntu3
    • 4.3.0-1ubuntu4
    • 4.3.0-1ubuntu5
    • 4.4.0-0ubuntu3
    • 4.4.0-0ubuntu4
    • 4.4.0-0ubuntu5
    • 4.4.0-0ubuntu5.1
    Affected ranges
    • ECOSYSTEM: < 4.4.0-0ubuntu5.2

    Update to 4.4.0-0ubuntu5.2

Original sources

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