Related Vulnerabilities: CVE-2021-29948  

A security issue has been found in Thunderbird before version 78.10. Signatures are written to disk before and read during verification, which might be subject to a race condition when a malicious local process or user is replacing the file.

Severity Low

Remote No

Type Signature forgery

Description

A security issue has been found in Thunderbird before version 78.10. Signatures are written to disk before and read during verification, which might be subject to a race condition when a malicious local process or user is replacing the file.

AVG-1836 thunderbird 78.9.1-3 High Vulnerable

https://www.mozilla.org/en-US/security/advisories/mfsa2021-14/#CVE-2021-29948
https://bugzilla.mozilla.org/show_bug.cgi?id=1692899