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Home >> Browse Vulnerability Assessment Database >> Ubuntu Local Security Checks >> USN174-1 : courier vulnerability

Vulnerability Assessment Details

USN174-1 : courier vulnerability

Vulnerability Assessment Summary
courier vulnerability

Detailed Explanation for this Vulnerability Assessment

Summary :

These remote packages are missing security patches :
- courier-authdaemon
- courier-authmysql
- courier-authpostgresql
- courier-base
- courier-doc
- courier-faxmail
- courier-imap
- courier-imap-ssl
- courier-ldap
- courier-maildrop
- courier-mlm
- courier-mta
- courier-mta-ssl
- courier-pcp
- courier-pop
- courier-pop-ssl
- courier-ssl
- courier-webadmin
- sqwebmail

Description :

A Denial of Service vulnerability has been discovered in the Courier
mail server. Due to a flawed status code check, failed DNS (domain
name service) queries for SPF (sender policy framework) were not
handled properly and could lead to memory corruption. A malicious DNS
server could exploit this to crash the Courier server.

However, SPF is not enabled by default, so you are only vulnerable if
you explicitly enabled it.

The Ubuntu 4.10 version of courier is not affected by this.

Solution :

Upgrade to :
- courier-authdaemon-0.47-3ubuntu1.1 (Ubuntu 5.04)
- courier-authmysql-0.47-3ubuntu1.1 (Ubuntu 5.04)
- courier-authpostgresql-0.47-3ubuntu1.1 (Ubuntu 5.04)
- courier-base-0.47-3ubuntu1.1 (Ubuntu 5.04)
- courier-doc-0.47-3ubuntu1.1 (Ubuntu 5.04)
- courier-faxmail-0.47-3ubuntu1.1 (Ubuntu 5.04)
- courier-imap-3.0.8-3ubuntu1.1 (Ubuntu 5.04)
- courier-imap-ssl-3.0.8-3ubuntu1.1 (Ubuntu 5.04)
- courier-ldap-0.47-3ubuntu1.1 (Ubuntu 5.04)
- courier-maildrop-0.47-3ubuntu1.1 (Ubuntu 5.04)
- courier-mlm-
[...]

Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: Ubuntu Security Notice (C) 2005 Canonical, Inc. / NASL script (C) 2005 Michel Arboi

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