USN-4674-2: Dovecot vulnerability
4 January 2021
Dovecot could be made to denial of service if it received a specially crafted MIME.
Releases
Packages
- dovecot - IMAP and POP3 email server
Details
USN-4674-1 fixed a vulnerability in Dovecot. This update provides
the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
Innokentii Sennovskiy discovered that Dovecot incorrectly handled MIME
parsing. A remote attacker could possibly use this issue to cause Dovecot
to crash, resulting in a denial of service. (CVE-2020-25275)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-4674-1: dovecot-auth-lua, dovecot-mysql, dovecot-gssapi, dovecot-sieve, mail-stack-delivery, dovecot-core, dovecot-imapd, dovecot-managesieved, dovecot-pgsql, dovecot, dovecot-ldap, dovecot-lucene, dovecot-lmtpd, dovecot-pop3d, dovecot-solr, dovecot-sqlite, dovecot-submissiond, dovecot-dev