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CVE-2021-23177

CVE-2021-23177

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

An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.

CVSS 7.8 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • libarchive

    Versions
    • Fixed in libarchive 3.5.2: Affected

    No fix published

  • libarchive Debian:12

    Affected ranges
    • ECOSYSTEM: < 3.5.2-1

    Update to 3.5.2-1

  • libarchive Debian:13

    Affected ranges
    • ECOSYSTEM: < 3.5.2-1

    Update to 3.5.2-1

  • libarchive Debian:14

    Affected ranges
    • ECOSYSTEM: < 3.5.2-1

    Update to 3.5.2-1

  • libarchive Ubuntu:Pro:14.04:LTS

    Versions
    • 3.1.2-5ubuntu1
    • 3.1.2-7ubuntu1
    • 3.1.2-7ubuntu2
    • 3.1.2-7ubuntu2.1
    • 3.1.2-7ubuntu2.2
    • 3.1.2-7ubuntu2.3
    • 3.1.2-7ubuntu2.4
    • 3.1.2-7ubuntu2.6
    • 3.1.2-7ubuntu2.7
    • 3.1.2-7ubuntu2.8
    • 3.1.2-7ubuntu2.8+esm1
    • 3.1.2-7ubuntu2.8+esm3
    • 3.1.2-7ubuntu2.8+esm4
    • 3.1.2-7ubuntu2.8+esm5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libarchive Ubuntu:Pro:16.04:LTS

    Versions
    • 3.1.2-11build1
    • 3.1.2-11ubuntu0.16.04.1
    • 3.1.2-11ubuntu0.16.04.2
    • 3.1.2-11ubuntu0.16.04.3
    • 3.1.2-11ubuntu0.16.04.4
    • 3.1.2-11ubuntu0.16.04.5
    • 3.1.2-11ubuntu0.16.04.6
    • 3.1.2-11ubuntu0.16.04.7
    • 3.1.2-11ubuntu0.16.04.8
    • 3.1.2-11ubuntu0.16.04.8+esm1
    • 3.1.2-11ubuntu0.16.04.8+esm2
    • 3.1.2-11ubuntu0.16.04.8+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libarchive Ubuntu:Pro:18.04:LTS

    Versions
    • 3.2.2-3.1
    • 3.2.2-3.1ubuntu0.1
    • 3.2.2-3.1ubuntu0.2
    • 3.2.2-3.1ubuntu0.3
    • 3.2.2-3.1ubuntu0.4
    • 3.2.2-3.1ubuntu0.5
    • 3.2.2-3.1ubuntu0.6
    • 3.2.2-3.1ubuntu0.7
    • 3.2.2-3.1ubuntu0.7+esm1
    • 3.2.2-3.1ubuntu0.7+esm2
    • 3.2.2-3.1ubuntu0.7+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libarchive Ubuntu:20.04:LTS

    Versions
    • 3.4.0-1
    • 3.4.0-1build1
    • 3.4.0-1ubuntu2
    • 3.4.0-2ubuntu1
    Affected ranges
    • ECOSYSTEM: < 3.4.0-2ubuntu1.1

    Update to 3.4.0-2ubuntu1.1

Original sources

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