Race Condition Affecting thunderbird-debuginfo package, versions <0:91.4.0-2.el8_5


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.69% (80th percentile)

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  • Snyk IDSNYK-ROCKY8-THUNDERBIRDDEBUGINFO-3279553
  • published3 Feb 2023
  • disclosed8 Dec 2021

Introduced: 8 Dec 2021

CVE-2021-43538  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 thunderbird-debuginfo to version 0:91.4.0-2.el8_5 or higher.
This issue was patched in RLSA-2021:5045.

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.

By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

CVSS Scores

version 3.1