vulnerability
Exim: Incorrect parsing of multiline rfc2231 header filename (CVE-2024-39929)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:L/Au:N/C:P/I:P/A:N) | 07/04/2024 | 07/31/2024 | 02/18/2025 |
Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
07/04/2024
Added
07/31/2024
Modified
02/18/2025
Description
Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.
Solution
exim-upgrade-latest
References
- CVE-2024-39929
- https://attackerkb.com/topics/CVE-2024-39929
- URL-https://bugs.exim.org/show_bug.cgi?id=3099#c4
- URL-https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b
- URL-https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357
- URL-https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3
- URL-https://www.rfc-editor.org/rfc/rfc2231.txt
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