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CVE-2016-9386

CVE-2016-9386

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

The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.

CVSS 7.8 · High · EPSS 0.4% · 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: < 4.8.0-1

    Update to 4.8.0-1

  • xen Debian:13

    Affected ranges
    • ECOSYSTEM: < 4.8.0-1

    Update to 4.8.0-1

  • xen Debian:14

    Affected ranges
    • ECOSYSTEM: < 4.8.0-1

    Update to 4.8.0-1

  • 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
    • 4.4.0-0ubuntu5.2
    • 4.4.1-0ubuntu0.14.04.1
    • 4.4.1-0ubuntu0.14.04.2
    • 4.4.1-0ubuntu0.14.04.3
    • 4.4.1-0ubuntu0.14.04.4
    • 4.4.1-0ubuntu0.14.04.5
    • 4.4.1-0ubuntu0.14.04.6
    • 4.4.2-0ubuntu0.14.04.1
    • 4.4.2-0ubuntu0.14.04.2
    • 4.4.2-0ubuntu0.14.04.3
    • 4.4.2-0ubuntu0.14.04.4
    • 4.4.2-0ubuntu0.14.04.5
    • 4.4.2-0ubuntu0.14.04.6
    • 4.4.2-0ubuntu0.14.04.7
    Affected ranges
    • ECOSYSTEM: < 4.4.2-0ubuntu0.14.04.9

    Update to 4.4.2-0ubuntu0.14.04.9

  • xen Ubuntu:16.04:LTS

    Versions
    • 4.5.1-0ubuntu1
    • 4.5.1-0ubuntu2
    • 4.6.0-1ubuntu1
    • 4.6.0-1ubuntu2
    • 4.6.0-1ubuntu4
    • 4.6.0-1ubuntu4.1
    • 4.6.0-1ubuntu4.2
    Affected ranges
    • ECOSYSTEM: < 4.6.0-1ubuntu4.3

    Update to 4.6.0-1ubuntu4.3

Original sources

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