| Name | CVE-2022-37452 |
| Description | Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_name is set. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3082-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| exim4 (PTS) | buster | 4.92-8+deb10u6 | vulnerable |
| buster (security) | 4.92-8+deb10u9 | fixed |
| bullseye (security), bullseye | 4.94.2-7+deb11u2 | fixed |
| bookworm, bookworm (security) | 4.96-15+deb12u4 | fixed |
| trixie | 4.97-5 | fixed |
| sid | 4.97-8 | 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 | 4.92-8+deb10u7 | | DLA-3082-1 | |
| exim4 | source | (unstable) | 4.94.2-5 | | | |
Notes
https://www.openwall.com/lists/oss-security/2022/08/06/8
https://github.com/ivd38/exim_overflow
https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743 (exim-4.95-RC0)