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Ubuntu Security Notice (C) 2005-2016 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related
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.
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.
Update the affected packages.
Risk factor :
Medium / CVSS Base Score : 5.0
Family: Ubuntu Local Security Checks
Nessus Plugin ID: 20584 ()
CVE ID: CVE-2005-2151
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