Courier Mail Server Username Encoding Denial of Service - Secunia Advisories - Vulnerability Intelligence

Courier Mail Server Username Encoding Denial of Service
Secunia Advisory:	SA20519	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2006-06-08
Popularity:	8,053 views

Critical:	Moderately critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

Software:	Courier Mail Server 0.x

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2006-2659

Description: A vulnerability has been reported in Courier Mail Server, which potentially can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerability is caused due to an error within the encoding of usernames that contain the "=" character. This can potentially be exploited to cause a DoS by consuming large amount of CPU resources. The vulnerability has been reported in versions prior to 0.53.2. Solution: Update to version 0.53.2 or apply patch. http://www.courier-mta.org/?download.php Patch: http://www.courier-mta.org/beta/patches/verp-fix/verp.patch.txt Provided and/or discovered by: Reported by vendor. Original Advisory: http://www.courier-mta.org/beta/patches/verp-fix/README.txt http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=368834

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