Courier MTA: Denial of Service vulnerability

Background Courier MTA is an integrated mail and groupware server based on open protocols. Description Courier MTA has fixed a security issue relating to usernames containing the "=" character, causing high CPU utilization. Impact An attacker could exploit this vulnerability by sending a speciall...

GLSA-200608-06 : Courier MTA: Denial of Service vulnerability

The remote host is affected by the vulnerability described in GLSA-200608-06 Courier MTA: Denial of Service vulnerability Courier MTA has fixed a security issue relating to usernames containing the '=' character, causing high CPU utilization. Impact : An attacker could exploit this vulnerability ...

[SECURITY] [DSA 1101-1] New courier packages fix denial of service

-------------------------------------------------------------------------- Debian Security Advisory DSA 1101-1 [email protected] http://www.debian.org/security/ Martin Schulze June 23rd, 2006 http://www.debian.org/security/faq -...

DSA-1101 courier - programming error

Bulletin has no description...

Courier Mail Server < 0.53.2 Crafted Username Encoding DoS

Binary data 3646.prm...

USN-294-1: courier vulnerability

A Denial of Service vulnerability has been found in the function for encoding email addresses. Addresses containing a '=' before the '@' character caused the Courier to hang in an endless loop, rendering the service unusable...

Courier mail server DoS

Infinite loop if recipient name contains '=' before '@'...

[SA20519] Courier Mail Server Username Encoding Denial of Service

---------------------------------------------------------------------- Want to join the Secunia Security Team? Secunia offers a position as a security specialist, where your daily work involves reverse engineering of software and exploit code, auditing of source code, and analysis of vulnerabilit...

CVE-2006-2659

libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service CPU consumption via unknown vectors involving usernames that contain the "=" equals character, which is not properly handled during encoding...

DEBIAN-CVE-2006-2659

libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service CPU consumption via unknown vectors involving usernames that contain the "=" equals character, which is not properly handled during encoding...

CVE-2006-2659

libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service CPU consumption via unknown vectors involving usernames that contain the "=" equals character, which is not properly handled during encoding...

Design/Logic Flaw

libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service CPU consumption via unknown vectors involving usernames that contain the "=" equals character, which is not properly handled during encoding...

CVE-2006-2659

libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service CPU consumption via unknown vectors involving usernames that contain the "=" equals character, which is not properly handled during encoding...

CVE-2006-2659

libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service CPU consumption via unknown vectors involving usernames that contain the "=" equals character, which is not properly handled during encoding...

CVE-2006-2659

libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service CPU consumption via unknown vectors involving usernames that contain the "=" equals character, which is not properly handled during encoding...

CVE-2006-2659

CVE-2006-2659 concerns the Courier MTA: a bug in libs/comverp.c affects encoding of usernames containing the ‘=’ character, causing high CPU usage and a potential Denial of Service. The issue is cited in multiple connected advisories (Debian DSA-1101, Ubuntu USN-294-1, Gentoo GLSA 200608-06) and ...

Ubuntu 4.10 / 5.04 / 5.10 : courier vulnerability (USN-226-1)

Patrick Cheong Shu Yang discovered a flaw in the user account handling of courier-authdaemon. After successful authorization, the Courier mail server granted access to deactivated accounts. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu...

Ubuntu 4.10 / 5.04 : courier vulnerabilities (USN-201-1)

Several Cross Site Scripting vulnerabilities were discovered in SqWebmail. A remote attacker could exploit this to execute arbitrary JavaScript or other active HTML embeddable content in the web browser of an SqWebmail user by sending specially crafted emails to him. Please note that the...

Ubuntu 5.04 : courier vulnerability (USN-174-1)

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...

CVE-2005-3532

authpam.c in courier-authdaemon for Courier Mail Server 0.37.3 through 0.52.1, when using pamtally, does not call the pamacctmgmt function to verify that access should be granted, which allows attackers to authenticate to the server using accounts that have been disabled...