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CVE-2020-11740

CVE-2020-11740

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

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (without active profiling) to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not scrubbed.

CVSS 5.5 · Medium · 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: < 4.11.4-1

    Update to 4.11.4-1

  • xen Debian:13

    Affected ranges
    • ECOSYSTEM: < 4.11.4-1

    Update to 4.11.4-1

  • xen Debian:14

    Affected ranges
    • ECOSYSTEM: < 4.11.4-1

    Update to 4.11.4-1

  • 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
    • 4.6.0-1ubuntu4.2
    • 4.6.0-1ubuntu4.3
    • 4.6.5-0ubuntu1
    • 4.6.5-0ubuntu1.1
    • 4.6.5-0ubuntu1.2
    • 4.6.5-0ubuntu1.4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • xen Ubuntu:18.04:LTS

    Versions
    • 4.9.0-0ubuntu3
    • 4.9.0-0ubuntu4
    • 4.9.2-0ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • xen Ubuntu:20.04:LTS

    Versions
    • 4.9.2-0ubuntu2
    • 4.9.2-0ubuntu6
    • 4.9.2-0ubuntu7
    • 4.11.3+24-g14b62ab3e5-1ubuntu1
    • 4.11.3+24-g14b62ab3e5-1ubuntu2
    • 4.11.3+24-g14b62ab3e5-1ubuntu2.2
    Affected ranges
    • ECOSYSTEM: < 4.11.3+24-g14b62ab3e5-1ubuntu2.3

    Update to 4.11.3+24-g14b62ab3e5-1ubuntu2.3

Original sources

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