Use After Free Affecting firefox-esr package, versions <91.11.0esr-1~deb10u1


0.0
high

Snyk CVSS

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

    Threat Intelligence

    EPSS 0.13% (47th percentile)
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NVD
8.8 high
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Red Hat
8.8 high
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SUSE
8.8 high

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  • Snyk ID SNYK-DEBIAN10-FIREFOXESR-2936694
  • published 29 Jun 2022
  • disclosed 22 Dec 2022

How to fix?

Upgrade Debian:10 firefox-esr to version 91.11.0esr-1~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

The Mozilla Fuzzing Team reported potential vulnerabilities present in Thunderbird 91.10. 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 < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.