CVEvulnerability
CVE-2024-39929
5.4 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2024-07-04
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-116
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.
Affected configurations
• exim exim (<= 4.97.1)
Related
Weakness · CWE (1)
- CWE-116 Improper Encoding or Escaping of Output weakness
References
- https://bugs.exim.org/show_bug.cgi?id=3099#c4 Exploit, Vendor Advisory
- https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b Patch
- https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357 Patch
- https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3 Release Notes
- https://www.rfc-editor.org/rfc/rfc2231.txt Not Applicable
- https://bugs.exim.org/show_bug.cgi?id=3099#c4 Exploit, Vendor Advisory
- https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b Patch
- https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357 Patch
- https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3 Release Notes
- https://www.rfc-editor.org/rfc/rfc2231.txt Not Applicable