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CVE-2021-23240

CVE-2021-23240

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

selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary file target. This affects SELinux RBAC support in permissive mode. Machines without SELinux are not vulnerable.

CVSS 7.8 · High · EPSS 1.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • sudo Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.9.5-1

    Update to 1.9.5-1

  • sudo Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.9.5-1

    Update to 1.9.5-1

  • sudo Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.9.5-1

    Update to 1.9.5-1

  • sudo Ubuntu:Pro:14.04:LTS

    Versions
    • 1.8.6p3-0ubuntu3
    • 1.8.8-2ubuntu1
    • 1.8.8-2ubuntu2
    • 1.8.9p4-1ubuntu1
    • 1.8.9p4-1ubuntu2
    • 1.8.9p5-1ubuntu1
    • 1.8.9p5-1ubuntu1.1
    • 1.8.9p5-1ubuntu1.2
    • 1.8.9p5-1ubuntu1.3
    • 1.8.9p5-1ubuntu1.4
    • 1.8.9p5-1ubuntu1.5+esm1
    • 1.8.9p5-1ubuntu1.5+esm2
    • 1.8.9p5-1ubuntu1.5+esm3
    • 1.8.9p5-1ubuntu1.5+esm5
    • 1.8.9p5-1ubuntu1.5+esm6
    • 1.8.9p5-1ubuntu1.5+esm7
    • 1.8.9p5-1ubuntu1.5+esm8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • sudo Ubuntu:Pro:16.04:LTS

    Versions
    • 1.8.12-1ubuntu3
    • 1.8.16-0ubuntu1
    • 1.8.16-0ubuntu1.1
    • 1.8.16-0ubuntu1.2
    • 1.8.16-0ubuntu1.3
    • 1.8.16-0ubuntu1.4
    • 1.8.16-0ubuntu1.5
    • 1.8.16-0ubuntu1.6
    • 1.8.16-0ubuntu1.7
    • 1.8.16-0ubuntu1.8
    • 1.8.16-0ubuntu1.9
    • 1.8.16-0ubuntu1.10
    • 1.8.16-0ubuntu1.10+esm1
    • 1.8.16-0ubuntu1.10+esm2
    • 1.8.16-0ubuntu1.10+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • sudo Ubuntu:Pro:18.04:LTS

    Versions
    • 1.8.20p2-1ubuntu1
    • 1.8.21p2-2ubuntu1
    • 1.8.21p2-3ubuntu1
    • 1.8.21p2-3ubuntu1.1
    • 1.8.21p2-3ubuntu1.2
    • 1.8.21p2-3ubuntu1.3
    • 1.8.21p2-3ubuntu1.4
    • 1.8.21p2-3ubuntu1.5
    • 1.8.21p2-3ubuntu1.6
    • 1.8.21p2-3ubuntu1.6+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • sudo Ubuntu:Pro:20.04:LTS

    Versions
    • 1.8.27-1ubuntu4
    • 1.8.29-1ubuntu1
    • 1.8.31-1ubuntu1
    • 1.8.31-1ubuntu1.1
    • 1.8.31-1ubuntu1.2
    • 1.8.31-1ubuntu1.4
    • 1.8.31-1ubuntu1.5
    • 1.8.31-1ubuntu1.5+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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