| Name | CVE-2024-39929 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5728-1 |
| Debian Bugs | 1075785 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| exim4 (PTS) | bullseye | 4.94.2-7+deb11u3 | fixed |
| bullseye (security) | 4.94.2-7+deb11u4 | fixed | |
| bookworm | 4.96-15+deb12u6 | fixed | |
| bookworm (security) | 4.96-15+deb12u5 | fixed | |
| sid, trixie | 4.98-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| exim4 | source | bullseye | 4.94.2-7+deb11u3 | DSA-5728-1 | ||
| exim4 | source | bookworm | 4.96-15+deb12u5 | DSA-5728-1 | ||
| exim4 | source | (unstable) | 4.98~RC3-2 | 1075785 |
https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357 (exim-4.98-RC3)
https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b (exim-4.98-RC3)
https://bugs.exim.org/show_bug.cgi?id=3099#c4