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CVE-2024-39929

Published: 4 July 2024

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.

Priority

Medium

Status

Package Release Status
exim4
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

mantic Ignored
(end of life, was needs-triage)
noble Needs triage

trusty Needs triage

upstream Needs triage

xenial Needs triage

Patches:
upstream: https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357
upstream: https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b