Use After Free Affecting firefox package, versions <0:68.10.0-1.el8_2


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.44% (75th 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 Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CENTOS8-FIREFOX-2042563
  • published26 Jul 2021
  • disclosed30 Jun 2020

Introduced: 30 Jun 2020

CVE-2020-12420  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:8 firefox to version 0:68.10.0-1.el8_2 or higher.

NVD Description

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

When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

CVSS Scores

version 3.1