Published: 06/07/2005 Updated: 05/09/2008

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

spf.c in Courier Mail Server does not properly handle DNS failures when looking up Sender Policy Framework (SPF) records, which could allow malicious users to cause memory corruption.

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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 ...

A problem has been discovered in the Courier Mail Server DNS failures were not handled properly when looking up Sender Policy Framework (SPF) records, which could allow attackers to cause memory corruption The default configuration on Debian has SPF checking disabled, so most machines are not vulnerable This is explained in the "courier" manpage ...

NVD-CWE-Other http://www.courier-mta.org/?changelog.html http://secunia.com/advisories/15901 https://usn.ubuntu.com/174-1/https://nvd.nist.gov

CVE-2005-2151

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