Inclusion of Functionality from Untrusted Control Sphere Affecting firefox package, versions <0:78.7.0-2.el7_9


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.14% (51st percentile)

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  • Snyk IDSNYK-RHEL7-FIREFOX-8014209
  • published17 Sept 2024
  • disclosed26 Jan 2021

Introduced: 26 Jan 2021

CVE-2021-23953  (opens in a new tab)
CWE-829  (opens in a new tab)

How to fix?

Upgrade RHEL:7 firefox to version 0:78.7.0-2.el7_9 or higher.
This issue was patched in RHSA-2021:0290.

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:7 relevant fixed versions and status.

If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

CVSS Scores

version 3.1