| Name | CVE-2018-6789 |
| Description | An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely. |
| 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-1274-1, DSA-4110-1 |
| Debian Bugs | 890000 |
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+deb10u7 | fixed |
| bullseye | 4.94.2-7 | fixed |
| bookworm | 4.96-15+deb12u1 | fixed |
| trixie, sid | 4.97~RC0-3 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.openwall.com/lists/oss-security/2018/02/07/2
https://exim.org/static/doc/security/CVE-2018-6789.txt
https://bugs.exim.org/show_bug.cgi?id=2235
https://git.exim.org/exim.git/commit/062990cc1b2f9e5d82a413b53c8f0569075de700