| Name | CVE-2020-12673 |
| Description | In Dovecot before 2.3.11.3, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-2328-1, DSA-4745-1 |
| NVD severity | medium |
| Debian Bugs | 968302 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| dovecot (PTS) | stretch | 1:2.2.27-3+deb9u5 | vulnerable |
| stretch (security) | 1:2.2.27-3+deb9u6 | fixed | |
| buster | 1:2.3.4.1-5+deb10u4 | fixed | |
| buster (security) | 1:2.3.4.1-5+deb10u3 | fixed | |
| bullseye, sid | 1:2.3.11.3+dfsg1-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| dovecot | source | stretch | 1:2.2.27-3+deb9u6 | DLA-2328-1 | ||
| dovecot | source | buster | 1:2.3.4.1-5+deb10u3 | DSA-4745-1 | ||
| dovecot | source | (unstable) | 1:2.3.11.3+dfsg1-1 | 968302 |
https://www.openwall.com/lists/oss-security/2020/08/12/2
https://github.com/dovecot/core/commit/fb246611e62ad8c5a95b0ca180a63f17aa34b0d8