| Name | CVE-2023-42115 |
| Description | Exim AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability |
| 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-5512-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| exim4 (PTS) | buster | 4.92-8+deb10u6 | fixed |
| buster (security) | 4.92-8+deb10u8 | fixed |
| bullseye | 4.94.2-7 | vulnerable |
| bullseye (security) | 4.94.2-7+deb11u1 | fixed |
| bookworm | 4.96-15+deb12u1 | vulnerable |
| bookworm (security) | 4.96-15+deb12u2 | fixed |
| sid, trixie | 4.97-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| exim4 | source | buster | (not affected) | | | |
| exim4 | source | bullseye | 4.94.2-7+deb11u1 | | DSA-5512-1 | |
| exim4 | source | bookworm | 4.96-15+deb12u2 | | DSA-5512-1 | |
| exim4 | source | (unstable) | 4.97~RC1-2 | | | |
Notes
[buster] - exim4 <not-affected> (External authenticator support was introduced later)
https://www.zerodayinitiative.com/advisories/ZDI-23-1469/
https://bugs.exim.org/show_bug.cgi?id=2999
https://git.exim.org/exim.git/log/refs/heads/exim-4.96%20security/exim.git/commit/955f1203c15be96fa84b5331fa2a5cb2e556b9a9
https://www.openwall.com/lists/oss-security/2023/09/29/5
https://www.openwall.com/lists/oss-security/2023/10/01/4
https://exim.org/static/doc/security/CVE-2023-zdi.txt