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CVE-2021-29488

CVE-2021-29488 · Creation of files outside the Download Folder through malicious PAR2 files

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

SABnzbd is an open source binary newsreader. A vulnerability was discovered in SABnzbd that could trick the `filesystem.renamer()` function into writing downloaded files outside the configured Download Folder via malicious PAR2 files. A patch was released as part of SABnzbd 3.2.1RC1. As a workaround, limit downloads to NZBs without PAR2 files, deny write permissions to the SABnzbd process outside areas it must access to perform its job, or update to a fixed version.

CVSS 4.3 · Medium · EPSS 0.9% · Public exploit · Fix available

Published
Updated

Stack: system

Affected products and versions

  • sabnzbd

    Versions
    • < 3.0.0: Affected

    No fix published

  • sabnzbd

    Versions
    • < 3.2.1: Affected

    No fix published

  • sabnzbdplus Debian:12

    Versions
    • 0.4.11-1
    • 0.4.12-1
    • 0.4.9-1
    • 0.5.0-1
    • 0.5.0-2
    • 0.5.2-1
    • 0.5.3-1
    • 0.5.4-1
    • 0.5.5-1
    • 0.5.6-1
    • 0.6.10-1
    • 0.6.14-1
    • 0.6.15-1
    • 0.6.2-1
    • 0.6.4-1
    • 0.6.6-1
    • 0.6.7-1
    • 0.6.8-1
    • 0.6.9-1
    • 0.7.11-1
    • 0.7.13-1
    • 0.7.16-1
    • 0.7.18-1
    • 0.7.2-1
    • 0.7.20+dfsg-1
    • 0.7.20-1
    • 0.7.3-1
    • 0.7.4-1
    • 0.7.5-1
    • 0.7.6-1
    • 0.7.8-1
    • 0.7.9-1
    • 1.0.2+dfsg-1
    • 1.0.3+dfsg-1
    • 1.0.3+dfsg-2
    • 1.1.1+dfsg-1
    • 2.3.1+dfsg-1
    • 2.3.2+dfsg-1
    • 2.3.4+dfsg-1
    • 2.3.6+dfsg-1
    • 3.0.0~0git20200408+dfsg-1
    • 3.1.1+dfsg-1
    • 3.1.1+dfsg-2
    Affected ranges
    • ECOSYSTEM: < 3.2.1+dfsg-1

    Update to 3.2.1+dfsg-1

  • sabnzbdplus Debian:13

    Versions
    • 0.4.11-1
    • 0.4.12-1
    • 0.4.9-1
    • 0.5.0-1
    • 0.5.0-2
    • 0.5.2-1
    • 0.5.3-1
    • 0.5.4-1
    • 0.5.5-1
    • 0.5.6-1
    • 0.6.10-1
    • 0.6.14-1
    • 0.6.15-1
    • 0.6.2-1
    • 0.6.4-1
    • 0.6.6-1
    • 0.6.7-1
    • 0.6.8-1
    • 0.6.9-1
    • 0.7.11-1
    • 0.7.13-1
    • 0.7.16-1
    • 0.7.18-1
    • 0.7.2-1
    • 0.7.20+dfsg-1
    • 0.7.20-1
    • 0.7.3-1
    • 0.7.4-1
    • 0.7.5-1
    • 0.7.6-1
    • 0.7.8-1
    • 0.7.9-1
    • 1.0.2+dfsg-1
    • 1.0.3+dfsg-1
    • 1.0.3+dfsg-2
    • 1.1.1+dfsg-1
    • 2.3.1+dfsg-1
    • 2.3.2+dfsg-1
    • 2.3.4+dfsg-1
    • 2.3.6+dfsg-1
    • 3.0.0~0git20200408+dfsg-1
    • 3.1.1+dfsg-1
    • 3.1.1+dfsg-2
    Affected ranges
    • ECOSYSTEM: < 3.2.1+dfsg-1

    Update to 3.2.1+dfsg-1

  • sabnzbdplus Debian:14

    Versions
    • 0.4.11-1
    • 0.4.12-1
    • 0.4.9-1
    • 0.5.0-1
    • 0.5.0-2
    • 0.5.2-1
    • 0.5.3-1
    • 0.5.4-1
    • 0.5.5-1
    • 0.5.6-1
    • 0.6.10-1
    • 0.6.14-1
    • 0.6.15-1
    • 0.6.2-1
    • 0.6.4-1
    • 0.6.6-1
    • 0.6.7-1
    • 0.6.8-1
    • 0.6.9-1
    • 0.7.11-1
    • 0.7.13-1
    • 0.7.16-1
    • 0.7.18-1
    • 0.7.2-1
    • 0.7.20+dfsg-1
    • 0.7.20-1
    • 0.7.3-1
    • 0.7.4-1
    • 0.7.5-1
    • 0.7.6-1
    • 0.7.8-1
    • 0.7.9-1
    • 1.0.2+dfsg-1
    • 1.0.3+dfsg-1
    • 1.0.3+dfsg-2
    • 1.1.1+dfsg-1
    • 2.3.1+dfsg-1
    • 2.3.2+dfsg-1
    • 2.3.4+dfsg-1
    • 2.3.6+dfsg-1
    • 3.0.0~0git20200408+dfsg-1
    • 3.1.1+dfsg-1
    • 3.1.1+dfsg-2
    Affected ranges
    • ECOSYSTEM: < 3.2.1+dfsg-1

    Update to 3.2.1+dfsg-1

  • sabnzbdplus Ubuntu:16.04:LTS

    Versions
    • 0.7.20-1
    • 0.7.20+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • sabnzbdplus Ubuntu:18.04:LTS

    Versions
    • 1.1.1+dfsg-1
    • 2.3.1+dfsg-1
    • 2.3.2+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • sabnzbdplus Ubuntu:20.04:LTS

    Versions
    • 2.3.6+dfsg-1
    • 2.3.6+dfsg-1build1
    • 2.3.6+dfsg-1ubuntu1
    • 3.0.0~0git20200408+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • sabnzbdplus Ubuntu:22.04:LTS

    Versions
    • 3.2.1+dfsg-1
    • 3.4.2+dfsg-1
    • 3.4.2+dfsg-2
    • 3.5.0+dfsg-1
    • 3.5.0+dfsg-2
    • 3.5.1+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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