| Name | CVE-2020-28023 |
| Description | Exim 4 before 4.94.2 allows Out-of-bounds Read. smtp_setup_msg may disclose sensitive information from process memory to an unauthenticated SMTP client. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DLA-2650-1, DSA-4912-1 |
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+deb10u7 | fixed |
| bullseye | 4.94.2-7 | fixed |
| bookworm, sid | 4.96-15 | fixed |
The information below is based on the following data on fixed versions.
Notes
Introduced by: https://git.exim.org/exim.git/commit/18481de384caecff421f23f715be916403f5d0ee (exim-4_88_RC1)
https://www.openwall.com/lists/oss-security/2021/05/04/7