Ubuntu Security Notice USN-3587-1
5th March, 2018
dovecot vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Dovecot.
Software description
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.
References
CVE-2017-14461, CVE-2017-15130
Continue reading...
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
Several security issues were fixed in Dovecot.
Software description
- dovecot - IMAP and POP3 email server
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.
References
CVE-2017-14461, CVE-2017-15130
Continue reading...
