Null Byte Interaction Error (Poison Null Byte) Affecting firefox package, versions <0:78.7.0-2.el7_9


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.28% (69th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL7-FIREFOX-1531418
  • published26 Jul 2021
  • disclosed26 Jan 2021

Introduced: 26 Jan 2021

CVE-2021-23960  (opens in a new tab)
CWE-626  (opens in a new tab)

How to fix?

Upgrade RHEL:7 firefox to version 0:78.7.0-2.el7_9 or higher.
This issue was patched in RHSA-2021:0290.

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:7 relevant fixed versions and status.

Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

CVSS Scores

version 3.1