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


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
2.14% (89th percentile)

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  • Snyk IDSNYK-ROCKY8-THUNDERBIRDDEBUGSOURCE-3289521
  • published3 Feb 2023
  • disclosed8 Dec 2021

Introduced: 8 Dec 2021

CVE-2021-38509  (opens in a new tab)
CWE-1021  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 thunderbird-debugsource 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-debugsource package and not the thunderbird-debugsource package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

CVSS Scores

version 3.1