Incorrect Regular Expression Affecting firefox package, versions <0:102.7.0-1.el8_7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-3238961
  • published19 Jan 2023
  • disclosed17 Jan 2023

Introduced: 17 Jan 2023

CVE-2023-23603  (opens in a new tab)
CWE-185  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:102.7.0-1.el8_7 or higher.
This issue was patched in RHSA-2023:0288.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Regular expressions used to filter out forbidden properties and values from style directives in calls to <code>console.log</code> weren't accounting for external URLs. Data could then be potentially exfiltrated from the browser. This vulnerability affects Firefox < 109, Thunderbird < 102.7, and Firefox ESR < 102.7.

CVSS Scores

version 3.1