Buffer Overflow Affecting firefox-esr package, versions <68.2.0esr-1


0.0
high

Snyk CVSS

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

    Threat Intelligence

    EPSS 1.39% (87th 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-DEBIAN12-FIREFOXESR-1545990
  • published 22 Oct 2019
  • disclosed 8 Jan 2020

How to fix?

Upgrade Debian:12 firefox-esr to version 68.2.0esr-1 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:12 relevant fixed versions and status.

An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.