CVE-2021-29948 Information

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.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Reference

https://www.mozilla.org/security/advisories/mfsa2021-14/ https://bugzilla.mozilla.org/show_bug.cgi?id=1692899

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

2.5