CVE-2022-29916 Affecting firefox-esr package, versions <91.9.0esr-1~deb11u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.14% (52nd percentile)

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  • Snyk IDSNYK-DEBIAN11-FIREFOXESR-2807581
  • published4 May 2022
  • disclosed22 Dec 2022

Introduced: 4 May 2022

CVE-2022-29916  (opens in a new tab)

How to fix?

Upgrade Debian:11 firefox-esr to version 91.9.0esr-1~deb11u1 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.

Firefox behaved slightly differently for already known resources when loading CSS resources involving CSS variables. This could have been used to probe the browser history. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

CVSS Scores

version 3.1