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CVE-2018-6553

CVE-2018-6553 · AppArmor cupsd Sandbox Bypass Due to Use of Hard Links

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

The CUPS AppArmor profile incorrectly confined the dnssd backend due to use of hard links. A local attacker could possibly use this issue to escape confinement. This flaw affects versions prior to 2.2.7-1ubuntu2.1 in Ubuntu 18.04 LTS, prior to 2.2.4-7ubuntu3.1 in Ubuntu 17.10, prior to 2.1.3-4ubuntu0.5 in Ubuntu 16.04 LTS, and prior to 1.7.2-0ubuntu1.10 in Ubuntu 14.04 LTS.

CVSS 8.8 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • cups

    Versions
    • ≥ unspecified, < 2.2.7-1ubuntu2.1: Affected (custom)

    Update to 2.2.7-1ubuntu2.1

  • cups

    Versions
    • ≥ unspecified, < 2.2.4-7ubuntu3.1: Affected (custom)

    Update to 2.2.4-7ubuntu3.1

  • cups

    Versions
    • ≥ unspecified, < 2.1.3-4ubuntu0.5: Affected (custom)

    Update to 2.1.3-4ubuntu0.5

  • cups

    Versions
    • ≥ unspecified, < 1.7.2-0ubuntu1.10: Affected (custom)

    Update to 1.7.2-0ubuntu1.10

  • cups Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.2.8-5

    Update to 2.2.8-5

  • cups Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.2.8-5

    Update to 2.2.8-5

  • cups Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.2.8-5

    Update to 2.2.8-5

  • cups Ubuntu:14.04:LTS

    Versions
    • 1.7.0~rc1-0ubuntu5
    • 1.7.0-0ubuntu2
    • 1.7.0-0ubuntu3
    • 1.7.0-1
    • 1.7.0-2
    • 1.7.1-1
    • 1.7.1-2
    • 1.7.1-2git1
    • 1.7.1-3
    • 1.7.1-4
    • 1.7.1-4ubuntu1
    • 1.7.1-5ubuntu1
    • 1.7.1-5ubuntu3
    • 1.7.1-5ubuntu4
    • 1.7.1-5ubuntu5
    • 1.7.1-5ubuntu6
    • 1.7.1-5ubuntu7
    • 1.7.1-5ubuntu8
    • 1.7.1-5ubuntu9
    • 1.7.1-5ubuntu10
    • 1.7.2-0ubuntu1
    • 1.7.2-0ubuntu1.1
    • 1.7.2-0ubuntu1.2
    • 1.7.2-0ubuntu1.4
    • 1.7.2-0ubuntu1.5
    • 1.7.2-0ubuntu1.6
    • 1.7.2-0ubuntu1.7
    • 1.7.2-0ubuntu1.8
    • 1.7.2-0ubuntu1.9
    Affected ranges
    • ECOSYSTEM: < 1.7.2-0ubuntu1.10

    Update to 1.7.2-0ubuntu1.10

  • cups Ubuntu:16.04:LTS

    Versions
    • 2.1.0-4ubuntu3
    • 2.1.0-5
    • 2.1.0-6
    • 2.1.0-6ubuntu1
    • 2.1.0-7
    • 2.1.2-1
    • 2.1.2-2
    • 2.1.3-1
    • 2.1.3-1build1
    • 2.1.3-3
    • 2.1.3-4
    • 2.1.3-4ubuntu0.2
    • 2.1.3-4ubuntu0.3
    • 2.1.3-4ubuntu0.4
    Affected ranges
    • ECOSYSTEM: < 2.1.3-4ubuntu0.5

    Update to 2.1.3-4ubuntu0.5

  • cups Ubuntu:18.04:LTS

    Versions
    • 2.2.4-7ubuntu2
    • 2.2.5-2
    • 2.2.6-2
    • 2.2.6-3
    • 2.2.6-4
    • 2.2.6-5
    • 2.2.7-1ubuntu1
    • 2.2.7-1ubuntu2
    Affected ranges
    • ECOSYSTEM: < 2.2.7-1ubuntu2.1

    Update to 2.2.7-1ubuntu2.1

Original sources

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