USN-3587-1: Dovecot vulnerabilities
Ubuntu Security Notice USN-3587-1
5th March, 2018
dovecot vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Several security issues were fixed in Dovecot.
Software description
- 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 version:
- Ubuntu 17.10:
-
dovecot-core
1:2.2.27-3ubuntu1.3
- Ubuntu 16.04 LTS:
-
dovecot-core
1:2.2.22-1ubuntu2.7
- Ubuntu 14.04 LTS:
-
dovecot-core
1:2.2.9-1ubuntu2.4
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
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