CVE Catalog

CVE-2006-2659

High
Published: Translated: NVD NIST

Summary

A denial of service vulnerability exists in libs/comverp.c of Courier MTA before version 0.53.2. Unknown attack vectors using the '=' character in usernames cause excessive CPU consumption.

Risk Assessment

An attacker can remotely overload the mail server, causing service unavailability for users.

Recommendation

Immediately upgrade Courier MTA to version 0.53.2 or later.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS