Improper Restriction of Rendered UI Layers or Frames Affecting thunderbird package, versions <0:78.5.0-1.0.1.el8_3


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.12% (47th percentile)

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  • Snyk IDSNYK-ORACLE8-THUNDERBIRD-2572447
  • published10 Apr 2022
  • disclosed9 Dec 2020

Introduced: 9 Dec 2020

CVE-2020-26953  (opens in a new tab)
CWE-1021  (opens in a new tab)

How to fix?

Upgrade Oracle:8 thunderbird to version 0:78.5.0-1.0.1.el8_3 or higher.
This issue was patched in ELSA-2020-5236.

NVD Description

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

It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

CVSS Scores

version 3.1