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Sicherheit: Denial of Service in dovecot
Aktuelle Meldungen Distributionen
Name: Denial of Service in dovecot
ID: USN-3258-1
Distribution: Ubuntu
Plattformen: Ubuntu 16.04 LTS, Ubuntu 16.10
Datum: Di, 11. April 2017, 07:18
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2669

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-3258-1
April 10, 2017

dovecot vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.10
- Ubuntu 16.04 LTS

Summary:

Dovecot could be made to crash if it received specially crafted input.

Software Description:
- dovecot: IMAP and POP3 email server

Details:

It was discovered that Dovecot incorrectly handled some usernames. An attacker
could possibly use this issue to cause Dovecot to hang or crash, resulting in a
denial of service.

Update instructions:

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

Ubuntu 16.10:
dovecot-core 1:2.2.24-1ubuntu1.2

Ubuntu 16.04 LTS:
dovecot-core 1:2.2.22-1ubuntu2.3

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

References:
http://www.ubuntu.com/usn/usn-3258-1
CVE-2017-2669

Package Information:
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.24-1ubuntu1.2
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.22-1ubuntu2.3


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