USN-3587-1: Dovecot vulnerabilities

Releases

• Ubuntu 17.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• dovecot - IMAP and POP3 email server

Details

It was discovered that Dovecot incorrectly handled parsing certain email
addresses. A remote attacker could use this issue to cause Dovecot to
crash, resulting in a denial of service, or possibly obtain sensitive
information. (CVE-2017-14461)

It was discovered that Dovecot incorrectly handled TLS SNI config lookups.
A remote attacker could possibly use this issue to cause Dovecot to crash,
resulting in a denial of service. (CVE-2017-15130)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 17.10

• dovecot-core - 1:2.2.27-3ubuntu1.3

Ubuntu 16.04

• dovecot-core - 1:2.2.22-1ubuntu2.7

Ubuntu 14.04

• dovecot-core - 1:2.2.9-1ubuntu2.4

In general, a standard system update will make all the necessary changes.

References

• CVE-2017-14461
• CVE-2017-15130

Related notices

• USN-3587-2: dovecot-core, dovecot