CVE-2024-39929

Sažetak

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.

Reference

https://bugs.exim.org/show_bug.cgi?id=3099#c4
https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b
https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357
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
https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b
https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357
https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3
https://www.rfc-editor.org/rfc/rfc2231.txt

CVSS

Base:	5.4
Impact:	2.5
Exploitability:	2.8

Pristup

Vektor	Složenost	Autentikacija
NETWORK	LOW	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
LOW	LOW	NONE

CVSS vektor

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Zadnje važnije ažuriranje

10-07-2025 - 22:15

Objavljeno

04-07-2024 - 15:15