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Sicherheit: Zwei Probleme in Dovecot
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Dovecot
ID: USN-3961-1
Distribution: Ubuntu
Plattformen: Ubuntu 18.10, Ubuntu 19.04
Datum: Mi, 1. Mai 2019, 09:41
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11494
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11499
Applikationen: dovecot

Originalnachricht

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This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <75ff4972-02f7-0b7b-769d-9098f4a312a6@canonical.com>
Subject: [USN-3961-1] Dovecot vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-3961-1
April 30, 2019

dovecot vulnerabilities
==========================================================================

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

- Ubuntu 19.04
- Ubuntu 18.10

Summary:

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

Software Description:
- dovecot: IMAP and POP3 email server

Details:

It was discovered that the Dovecot Submission login service incorrectly
handled certain operations. A remote attacker could possibly use this issue
to cause Dovecot to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 19.04:
dovecot-core 1:2.3.4.1-1ubuntu2.2
dovecot-submissiond 1:2.3.4.1-1ubuntu2.2

Ubuntu 18.10:
dovecot-core 1:2.3.2.1-1ubuntu3.4
dovecot-submissiond 1:2.3.2.1-1ubuntu3.4

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

References:
https://usn.ubuntu.com/usn/usn-3961-1
CVE-2019-11494, CVE-2019-11499

Package Information:
https://launchpad.net/ubuntu/+source/dovecot/1:2.3.4.1-1ubuntu2.2
https://launchpad.net/ubuntu/+source/dovecot/1:2.3.2.1-1ubuntu3.4


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