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CVE-2021-3156

CVE-2021-3156

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

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

CVSS 7.8 · High · EPSS 100.0% · In KEV · Public exploit · 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: < 1.9.5p1-1.1

    Update to 1.9.5p1-1.1

  • sudo Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.9.5p1-1.1

    Update to 1.9.5p1-1.1

  • sudo Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.9.5p1-1.1

    Update to 1.9.5p1-1.1

  • 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
    Affected ranges
    • ECOSYSTEM: < 1.8.9p5-1ubuntu1.5+esm6

    Update to 1.8.9p5-1ubuntu1.5+esm6

  • sudo Ubuntu: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
    Affected ranges
    • ECOSYSTEM: < 1.8.16-0ubuntu1.10

    Update to 1.8.16-0ubuntu1.10

  • sudo Ubuntu: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
    Affected ranges
    • ECOSYSTEM: < 1.8.21p2-3ubuntu1.4

    Update to 1.8.21p2-3ubuntu1.4

  • sudo Ubuntu:20.04:LTS

    Versions
    • 1.8.27-1ubuntu4
    • 1.8.29-1ubuntu1
    • 1.8.31-1ubuntu1
    • 1.8.31-1ubuntu1.1
    Affected ranges
    • ECOSYSTEM: < 1.8.31-1ubuntu1.2

    Update to 1.8.31-1ubuntu1.2

Original sources

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