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Sicherheit: Ausführen von Code mit höheren Privilegien in Dovecot
Aktuelle Meldungen Distributionen
Name: Ausführen von Code mit höheren Privilegien in Dovecot
ID: USN-3928-1
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 18.10
Datum: Mo, 1. April 2019, 16:34
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7524
Applikationen: dovecot

Originalnachricht

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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: <73a0ab53-b95c-aec6-3233-f14139ae7ed7@canonical.com>
Subject: [USN-3928-1] Dovecot vulnerability

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==========================================================================
Ubuntu Security Notice USN-3928-1
April 01, 2019

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

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

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Dovecot could be made to crash or run programs as an administrator
if it opened a specially crafted file.

Software Description:
- dovecot: IMAP and POP3 email server

Details:

It was discovered that Dovecot incorrectly handled reading certain headers
from the index. A local attacker could possibly use this issue to escalate
privileges.

Update instructions:

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

Ubuntu 18.10:
dovecot-core 1:2.3.2.1-1ubuntu3.2

Ubuntu 18.04 LTS:
dovecot-core 1:2.2.33.2-1ubuntu4.3

Ubuntu 16.04 LTS:
dovecot-core 1:2.2.22-1ubuntu2.10

Ubuntu 14.04 LTS:
dovecot-core 1:2.2.9-1ubuntu2.6

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

References:
https://usn.ubuntu.com/usn/usn-3928-1
CVE-2019-7524

Package Information:
https://launchpad.net/ubuntu/+source/dovecot/1:2.3.2.1-1ubuntu3.2
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.33.2-1ubuntu4.3
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.22-1ubuntu2.10
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.9-1ubuntu2.6


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