Improper Restriction of Rendered UI Layers or Frames Affecting thunderbird-debuginfo package, versions <0:91.3.0-2.el8


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.62% (79th percentile)

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  • Snyk IDSNYK-ROCKY8-THUNDERBIRDDEBUGINFO-3289504
  • published3 Feb 2023
  • disclosed8 Dec 2021

Introduced: 8 Dec 2021

CVE-2021-38506  (opens in a new tab)
CWE-1021  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 thunderbird-debuginfo to version 0:91.3.0-2.el8 or higher.
This issue was patched in RLSA-2021:4130.

NVD Description

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

Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

CVSS Scores

version 3.1