Use After Free Affecting firefox package, versions <91.0-1


0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.81% (82nd percentile)
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NVD
8.8 high
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Red Hat
8.8 high
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SUSE
6.1 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1538497
  • published 11 Aug 2021
  • disclosed 17 Aug 2021

How to fix?

Upgrade Debian:unstable firefox to version 91.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A use-after-free vulnerability in media channels could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.