p PatchFirst

CVE-2018-7738

CVE-2018-7738

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

In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion.

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

  • bash-completion Debian:12

    Versions
    • 1:2.11-6
    • 1:2.11-7
    • 1:2.11-8
    • 1:2.12.0-1
    • 1:2.13.0-1
    • 1:2.14.0-1
    • 1:2.14.0-2
    • 1:2.16.0-1
    • 1:2.16.0-2
    • 1:2.16.0-3
    • 1:2.16.0-4
    • 1:2.16.0-5
    • 1:2.16.0-6
    • 1:2.16.0-7
    • 1:2.16.0-8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bash-completion Debian:13

    Versions
    • 1:2.16.0-7
    • 1:2.16.0-8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bash-completion Debian:14

    Versions
    • 1:2.16.0-7
    • 1:2.16.0-8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • util-linux Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.31.1-0.5

    Update to 2.31.1-0.5

  • util-linux Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.31.1-0.5

    Update to 2.31.1-0.5

  • util-linux Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.31.1-0.5

    Update to 2.31.1-0.5

  • util-linux Ubuntu:18.04:LTS

    Versions
    • 2.30.1-0ubuntu4
    • 2.30.2-0.1ubuntu1
    • 2.30.2-0.1ubuntu2
    • 2.30.2-0.1ubuntu3
    • 2.31.1-0.4ubuntu2
    • 2.31.1-0.4ubuntu3
    • 2.31.1-0.4ubuntu3.1
    • 2.31.1-0.4ubuntu3.2
    • 2.31.1-0.4ubuntu3.3
    • 2.31.1-0.4ubuntu3.4
    • 2.31.1-0.4ubuntu3.5
    • 2.31.1-0.4ubuntu3.6
    Affected ranges
    • ECOSYSTEM: < 2.31.1-0.4ubuntu3.7

    Update to 2.31.1-0.4ubuntu3.7

Original sources

Check your server →