Description
A denial of service flaw was found in dovecot before 2.2.34. An attacker able to generate random SNI server names could exploit TLS SNI configuration lookups, leading to excessive memory usage and the process to restart.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
The Dovecot Project dovecot
before 2.2.34affected
References
- https://usn.ubuntu.com/3587-1/ ↗
- http://seclists.org/oss-sec/2018/q1/205 ↗
- https://lists.debian.org/debian-lts-announce/2018/03/msg00036.html ↗
- https://www.debian.org/security/2018/dsa-4130 ↗
- https://usn.ubuntu.com/3587-2/ ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1532356 ↗
- https://www.dovecot.org/list/dovecot-news/2018-February/000370.html ↗