Several vulnerabilities have been found in evolution-data-server, the database backend server for the evolution groupware suite. The Common Vulnerabilities and Exposures project identifies the following problems: It was discovered that evolution-data-server is prone to integer overflows triggered by large base64 strings. Joachim Breitner discovered that S/MIME signatures are not verified properly, which can lead to spoofing attacks. It was discovered that NTLM authentication challenge packets are not validated properly when using the NTLM authentication method, which could lead to an information disclosure or a denial of service.