|Description||It was discovered that Dovecot before versions 220.127.116.11 and 18.104.22.168 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.|
|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)|
|NVD severity||medium (attack range: remote)|
Vulnerable and fixed packages
The table below lists information on source packages.
|stretch (security), stretch||1:2.2.27-3+deb9u4||fixed|
|bullseye, sid, buster||1:22.214.171.124-5||fixed|
The information below is based on the following data on fixed versions.