Alt-n Mdaemon 9.0.5

Multiple unspecified vulnerabilities in MDaemon and WorldClient in Alt-N Technologies MDaemon before 9.50 allow attackers to cause a denial of service (memory consumption) via unspecified vectors resulting in memory leaks.

Multiple heap-based buffer overflows in the POP3 server in Alt-N Technologies MDaemon before 9.0.6 allow remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via long strings that contain '@' characters in the (1) USER and (2) APOP commands.

Multiple unspecified vulnerabilities in WorldClient in Alt-N MDaemon before 10.02 have unknown impact and attack vectors, probably related to cross-site scripting (XSS) and WorldClient DLL 10.0.1, a different vulnerability than CVE-2008-6893.

MDaemon 9.0.5, 9.0.6, 9.51, and 9.53, and possibly other versions, installs the MDaemon application folder with insecure permissions (Users create files/directories), which allows local users to execute arbitrary code by creating malicious RASAPI32.DLL or MPRAPI.DLL libraries in the MDaemon\APP folder, which is an untrusted search path element due to insecure permissions.