CVE-2021-29948

LOW

Thunderbird < 78.10 - Race Condition via Signature File Replacement

Title source: llm
STIX 2.1

Description

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. This vulnerability affects Thunderbird < 78.10.

References (2)

Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-14/
Exploit, Patch, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1692899

Scores

CVSS v3 2.5
EPSS 0.0007
EPSS Percentile 21.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Details

CWE
CWE-362
Status published
Products (1)
mozilla/thunderbird < 78.10
Published Jun 24, 2021
Tracked Since Feb 18, 2026