Information Exposure Affecting firefox-esr package, versions <91.4.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.16% (85th percentile)

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  • Snyk IDSNYK-ALPINE320-FIREFOXESR-7010631
  • published23 May 2024
  • disclosed8 Dec 2021

Introduced: 8 Dec 2021

CVE-2021-43542  (opens in a new tab)
CWE-209  (opens in a new tab)

How to fix?

Upgrade Alpine:3.20 firefox-esr to version 91.4.0-r0 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 Alpine. See How to fix? for Alpine:3.20 relevant fixed versions and status.

Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

CVSS Scores

version 3.1