Description
When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text was never shown to the user. This is because the text was interpreted as a MIME message and the first paragraph was always treated as an email header section. A digitally signed text from a different context, such as a signed GIT commit, could be used to spoof an email message. This vulnerability affects Thunderbird < 115.6.
References (4)
Core 4
Core References
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1862625
Third Party Advisory
https://www.debian.org/security/2023/dsa-5582
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-55/
Scores
CVSS v3
4.3
EPSS
0.0029
EPSS Percentile
52.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Details
Status
published
Products (3)
debian/debian_linux
11.0
debian/debian_linux
12.0
mozilla/thunderbird
< 115.6
Published
Dec 19, 2023
Tracked Since
Feb 18, 2026