Out-of-bounds Write Affecting firefox package, versions <0:78.10.0-1.el8_3


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.31% (71st percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-3976008
  • published26 Jul 2021
  • disclosed19 Apr 2021

Introduced: 19 Apr 2021

CVE-2021-23994  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:78.10.0-1.el8_3 or higher.
This issue was patched in RHSA-2021:1360.

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.

A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

CVSS Scores

version 3.1