Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Exim | Exim | <= 4.97.1 |
Related Weaknesses (CWE)
References
- https://bugs.exim.org/show_bug.cgi?id=3099#c4ExploitVendor Advisory
- https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7bPatch
- https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357Patch
- https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3Release Notes
- https://www.rfc-editor.org/rfc/rfc2231.txtNot Applicable
- https://bugs.exim.org/show_bug.cgi?id=3099#c4ExploitVendor Advisory
- https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7bPatch
- https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357Patch
- https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3Release Notes
- https://www.rfc-editor.org/rfc/rfc2231.txtNot Applicable
FAQ
What is CVE-2024-39929?
CVE-2024-39929 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 at...
How severe is CVE-2024-39929?
CVE-2024-39929 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-39929?
Check the references section above for vendor advisories and patch information. Affected products include: Exim Exim.