Arbitrary Code Injection Affecting firefox package, versions <0:102.3.0-6.el9_0.alma


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.1% (45th percentile)

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  • Snyk IDSNYK-ALMALINUX9-FIREFOX-5635685
  • published28 May 2023
  • disclosed26 Sept 2022

Introduced: 26 Sep 2022

CVE-2022-40958  (opens in a new tab)
CWE-74  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 firefox to version 0:102.3.0-6.el9_0.alma or higher.
This issue was patched in ALSA-2022:6700.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

By injecting a cookie with certain special characters, an attacker on a shared subdomain which is not a secure context could set and thus overwrite cookies from a secure context, leading to session fixation and other attacks. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

CVSS Scores

version 3.1