Use After Free Affecting firefox package, versions <0:78.5.0-1.0.1.el8_3


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.36% (73rd percentile)

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  • Snyk IDSNYK-ORACLE8-FIREFOX-2575582
  • published10 Apr 2022
  • disclosed9 Dec 2020

Introduced: 9 Dec 2020

CVE-2020-26959  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:8 firefox to version 0:78.5.0-1.0.1.el8_3 or higher.
This issue was patched in ELSA-2020-5237.

NVD Description

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

During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

CVSS Scores

version 3.1