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CVE-2015-7835

CVE-2015-7835

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

The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.

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: < 4.6.0-1

    Update to 4.6.0-1

  • xen Debian:13

    Affected ranges
    • ECOSYSTEM: < 4.6.0-1

    Update to 4.6.0-1

  • xen Debian:14

    Affected ranges
    • ECOSYSTEM: < 4.6.0-1

    Update to 4.6.0-1

  • 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
    Affected ranges
    • ECOSYSTEM: < 4.4.2-0ubuntu0.14.04.3

    Update to 4.4.2-0ubuntu0.14.04.3

Original sources

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