Information Exposure Affecting firefox-esr package, versions <91.4.0esr-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.91% (90th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOXESR-2312002
  • published8 Dec 2021
  • disclosed8 Dec 2021

Introduced: 8 Dec 2021

CVE-2021-43536  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox-esr to version 91.4.0esr-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:unstable relevant fixed versions and status.

Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

CVSS Scores

version 3.1