Use After Free Affecting firefox-esr package, versions <68.2.0esr-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.5% (88th percentile)

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  • Snyk IDSNYK-DEBIAN11-FIREFOXESR-515884
  • published22 Oct 2019
  • disclosed8 Jan 2020

Introduced: 22 Oct 2019

CVE-2019-11764  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:11 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:11 relevant fixed versions and status.

Mozilla developers and community members reported memory safety bugs present in Firefox 69 and Firefox ESR 68.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS Scores

version 3.1