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CVE-2021-29977

CVE-2021-29977

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

Mozilla developers reported memory safety bugs present in Firefox 89. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 90.

CVSS 8.8 · High · EPSS 1.0% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • firefox

    Versions
    • ≥ unspecified, < 90: Affected (custom)

    Update to 90

  • firefox Ubuntu:18.04:LTS

    Versions
    • 56.0+build6-0ubuntu1
    • 57.0.1+build2-0ubuntu1
    • 59.0.1+build1-0ubuntu1
    • 59.0.2+build1-0ubuntu1
    • 60.0+build2-0ubuntu1
    • 60.0.1+build2-0ubuntu0.18.04.1
    • 60.0.2+build1-0ubuntu0.18.04.1
    • 61.0+build3-0ubuntu0.18.04.1
    • 61.0.1+build1-0ubuntu0.18.04.1
    • 62.0+build2-0ubuntu0.18.04.3
    • 62.0+build2-0ubuntu0.18.04.4
    • 62.0+build2-0ubuntu0.18.04.5
    • 62.0.3+build1-0ubuntu0.18.04.1
    • 63.0+build2-0ubuntu0.18.04.2
    • 63.0.3+build1-0ubuntu0.18.04.1
    • 64.0+build3-0ubuntu0.18.04.1
    • 65.0+build2-0ubuntu0.18.04.1
    • 65.0.1+build2-0ubuntu0.18.04.1
    • 66.0+build3-0ubuntu0.18.04.1
    • 66.0.1+build1-0ubuntu0.18.04.1
    • 66.0.2+build1-0ubuntu0.18.04.1
    • 66.0.3+build1-0ubuntu0.18.04.1
    • 66.0.4+build3-0ubuntu0.18.04.1
    • 66.0.5+build1-0ubuntu0.18.04.1
    • 67.0+build2-0ubuntu0.18.04.1
    • 67.0.1+build1-0ubuntu0.18.04.1
    • 67.0.2+build2-0ubuntu0.18.04.1
    • 67.0.3+build1-0ubuntu0.18.04.1
    • 67.0.4+build1-0ubuntu0.18.04.1
    • 68.0+build3-0ubuntu0.18.04.1
    • 68.0.1+build1-0ubuntu0.18.04.1
    • 68.0.2+build1-0ubuntu0.18.04.1
    • 69.0+build2-0ubuntu0.18.04.1
    • 69.0.1+build1-0ubuntu0.18.04.1
    • 69.0.2+build1-0ubuntu0.18.04.1
    • 70.0+build2-0ubuntu0.18.04.1
    • 70.0.1+build1-0ubuntu0.18.04.1
    • 71.0+build5-0ubuntu0.18.04.1
    • 72.0.1+build1-0ubuntu0.18.04.1
    • 72.0.2+build1-0ubuntu0.18.04.1
    • 73.0+build3-0ubuntu0.18.04.1
    • 73.0.1+build1-0ubuntu0.18.04.1
    • 74.0+build3-0ubuntu0.18.04.1
    • 74.0.1+build1-0ubuntu0.18.04.1
    • 75.0+build3-0ubuntu0.18.04.1
    • 76.0+build2-0ubuntu0.18.04.1
    • 76.0.1+build1-0ubuntu0.18.04.1
    • 77.0.1+build1-0ubuntu0.18.04.1
    • 78.0.1+build1-0ubuntu0.18.04.1
    • 78.0.2+build2-0ubuntu0.18.04.1
    • 79.0+build1-0ubuntu0.18.04.1
    • 80.0+build2-0ubuntu0.18.04.1
    • 80.0.1+build1-0ubuntu0.18.04.1
    • 81.0+build2-0ubuntu0.18.04.1
    • 81.0.2+build1-0ubuntu0.18.04.1
    • 82.0+build2-0ubuntu0.18.04.1
    • 82.0.2+build1-0ubuntu0.18.04.1
    • 82.0.3+build1-0ubuntu0.18.04.1
    • 83.0+build2-0ubuntu0.18.04.2
    • 84.0+build3-0ubuntu0.18.04.1
    • 84.0.1+build1-0ubuntu0.18.04.1
    • 84.0.2+build1-0ubuntu0.18.04.1
    • 85.0+build1-0ubuntu0.18.04.1
    • 85.0.1+build1-0ubuntu0.18.04.1
    • 86.0+build3-0ubuntu0.18.04.1
    • 86.0.1+build1-0ubuntu0.18.04.1
    • 87.0+build3-0ubuntu0.18.04.2
    • 88.0+build2-0ubuntu0.18.04.2
    • 88.0.1+build1-0ubuntu0.18.04.2
    • 89.0+build2-0ubuntu0.18.04.2
    • 89.0.1+build1-0ubuntu0.18.04.1
    • 89.0.2+build1-0ubuntu0.18.04.1
    Affected ranges
    • ECOSYSTEM: < 90.0+build1-0ubuntu0.18.04.1

    Update to 90.0+build1-0ubuntu0.18.04.1

  • mozjs52 Ubuntu:18.04:LTS

    Versions
    • 52.3.1-0ubuntu3
    • 52.3.1-7fakesync1
    • 52.8.1-0ubuntu0.18.04.1
    • 52.9.1-0ubuntu0.18.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mozjs38 Ubuntu:18.04:LTS

    Versions
    • 38.8.0~repack1-0ubuntu1
    • 38.8.0~repack1-0ubuntu3
    • 38.8.0~repack1-0ubuntu4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • firefox Ubuntu:20.04:LTS

    Versions
    • 69.0.3+build1-0ubuntu1
    • 70.0+build2-0ubuntu1
    • 70.0+build2-0ubuntu2
    • 70.0.1+build1-0ubuntu2
    • 71.0+build2-0ubuntu2
    • 71.0+build5-0ubuntu1
    • 72.0.1+build1-0ubuntu1
    • 72.0.2+build1-0ubuntu1
    • 73.0+build1-0ubuntu1
    • 73.0+build2-0ubuntu1
    • 73.0+build3-0ubuntu1
    • 73.0.1+build1-0ubuntu1
    • 74.0+build1-0ubuntu1
    • 74.0+build2-0ubuntu1
    • 74.0+build2-0ubuntu2
    • 74.0+build3-0ubuntu1
    • 75.0+build3-0ubuntu1
    • 76.0+build2-0ubuntu0.20.04.1
    • 76.0.1+build1-0ubuntu0.20.04.1
    • 77.0.1+build1-0ubuntu0.20.04.1
    • 78.0.1+build1-0ubuntu0.20.04.1
    • 78.0.2+build2-0ubuntu0.20.04.1
    • 79.0+build1-0ubuntu0.20.04.1
    • 80.0+build2-0ubuntu0.20.04.1
    • 80.0.1+build1-0ubuntu0.20.04.1
    • 81.0+build2-0ubuntu0.20.04.1
    • 81.0.2+build1-0ubuntu0.20.04.1
    • 82.0+build2-0ubuntu0.20.04.1
    • 82.0.2+build1-0ubuntu0.20.04.1
    • 82.0.3+build1-0ubuntu0.20.04.1
    • 83.0+build2-0ubuntu0.20.04.1
    • 84.0+build3-0ubuntu0.20.04.1
    • 84.0.1+build1-0ubuntu0.20.04.1
    • 84.0.2+build1-0ubuntu0.20.04.1
    • 85.0+build1-0ubuntu0.20.04.1
    • 85.0.1+build1-0ubuntu0.20.04.1
    • 86.0+build3-0ubuntu0.20.04.1
    • 86.0.1+build1-0ubuntu0.20.04.1
    • 87.0+build3-0ubuntu0.20.04.2
    • 88.0+build2-0ubuntu0.20.04.1
    • 88.0.1+build1-0ubuntu0.20.04.2
    • 89.0+build2-0ubuntu0.20.04.2
    • 89.0.1+build1-0ubuntu0.20.04.1
    • 89.0.2+build1-0ubuntu0.20.04.1
    Affected ranges
    • ECOSYSTEM: < 90.0+build1-0ubuntu0.20.04.1

    Update to 90.0+build1-0ubuntu0.20.04.1

  • mozjs68 Ubuntu:20.04:LTS

    Versions
    • 68.5.0-1~fakesync
    • 68.5.0-2~fakesync
    • 68.6.0-1
    • 68.6.0-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mozjs52 Ubuntu:20.04:LTS

    Versions
    • 52.9.1-1build1
    • 52.9.1-1ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mozjs78 Ubuntu:22.04:LTS

    Versions
    • 78.13.0-1
    • 78.15.0-2
    • 78.15.0-4ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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