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CVE
PUBLISHED

CVE-2024-39929

Assignermitre
Reserved2024-07-04
Published2024-07-04
Updated2024-07-08

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.

References

https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357

https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b

https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3

https://www.rfc-editor.org/rfc/rfc2231.txt

https://bugs.exim.org/show_bug.cgi?id=3099#c4

cve.org CVE-2024-39929

nvd.nist.gov CVE-2024-39929

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