Improper Check for Unusual or Exceptional Conditions Affecting firefox-esr package, versions <102.7.0esr-1~deb11u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.11% (46th percentile)

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  • Snyk IDSNYK-DEBIAN11-FIREFOXESR-3232839
  • published18 Jan 2023
  • disclosed2 Jun 2023

Introduced: 18 Jan 2023

CVE-2023-23602  (opens in a new tab)
CWE-754  (opens in a new tab)

How to fix?

Upgrade Debian:11 firefox-esr to version 102.7.0esr-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.

A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to connections to restricted origins from inside WebWorkers. This vulnerability affects Firefox < 109, Thunderbird < 102.7, and Firefox ESR < 102.7.

CVSS Scores

version 3.1