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Mozilla Foundation Security Advisory 2022-54

Security Vulnerabilities fixed in Thunderbird 102.6.1

Announced
December 20, 2022
Impact
high
Products
Thunderbird
Fixed in
  • Thunderbird 102.6.1

In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts.

#CVE-2022-46874: Drag and Dropped Filenames could have been truncated to malicious extensions

Reporter
Matthias Zoellner
Impact
moderate
Description

A file with a long filename could have had its filename truncated to remove the valid extension, leaving a malicious extension in its place. This could potentially led to user confusion and the execution of malicious code.
Note: This issue was originally included in the advisories for Thunderbird 102.6, but a patch (specific to Thunderbird) was omitted, resulting in it actually being fixed in Thunderbird 102.6.1

References