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CVE-2016-6259

CVE-2016-6259

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

Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check.

CVSS 6.2 · Medium · EPSS 0.6% · 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~rc3-1

    Update to 4.8.0~rc3-1

  • xen Debian:13

    Affected ranges
    • ECOSYSTEM: < 4.8.0~rc3-1

    Update to 4.8.0~rc3-1

  • xen Debian:14

    Affected ranges
    • ECOSYSTEM: < 4.8.0~rc3-1

    Update to 4.8.0~rc3-1

  • 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
    Affected ranges
    • ECOSYSTEM: < 4.6.0-1ubuntu4.2

    Update to 4.6.0-1ubuntu4.2

Original sources

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