Use After Free Affecting firefox package, versions <99.0-1


0.0
high

Snyk CVSS

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

    Threat Intelligence

    Exploit Maturity Mature
    EPSS 1.35% (86th percentile)
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NVD
8.8 high
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SUSE
8.8 high
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Red Hat
8.8 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-2419012
  • published 6 Mar 2022
  • disclosed 22 Dec 2022

How to fix?

Upgrade Debian:unstable firefox to version 99.0-1 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.

Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.