Information Exposure Affecting firefox package, versions <0:78.8.0-1.el8_3


Severity

Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.09% (85th percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-3962858
  • published26 Jul 2021
  • disclosed23 Feb 2021

Introduced: 23 Feb 2021

CVE-2021-23973  (opens in a new tab)
CWE-209  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:78.8.0-1.el8_3 or higher.
This issue was patched in RHSA-2021:0655.

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.

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

CVSS Scores

version 3.1