Information Exposure Affecting firefox package, versions <0:78.9.0-1.el8_3


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-3962861
  • published26 Jul 2021
  • disclosed23 Mar 2021

Introduced: 23 Mar 2021

CVE-2021-23982  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:78.9.0-1.el8_3 or higher.
This issue was patched in RHSA-2021:0990.

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.

Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

CVSS Scores

version 3.1