Unintended Proxy or Intermediary ('Confused Deputy') Affecting firefox package, versions <0:128.6.0-1.el8_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-8605258
  • published9 Jan 2025
  • disclosed7 Jan 2025

Introduced: 7 Jan 2025

NewCVE-2025-0237  (opens in a new tab)
CWE-441  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:128.6.0-1.el8_2 or higher.
This issue was patched in RHSA-2025:0133.

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.

The WebChannel API, which is used to transport various information across processes, did not check the sending principal but rather accepted the principal being sent. This could have led to privilege escalation attacks. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

CVSS Scores

version 3.1