Vpopmail Vchkpw Security Vulnerabilities

CVE-2006-2346

vpopmail 5.4.14 and 5.4.15, with cleartext passwords enabled, allows remote attackers to authenticate to an account that does not have a cleartext password set by using a blank password to (1) SMTP AUTH or (2)...

CVE-2004-2238

Format string vulnerability in vsybase.c in vpopmail 5.4.2 and earlier has unknown impact and attack vectors. NOTE: in a followup post, it was observed that the source code used constants that, when compiled, became static format strings. Thus this is not a...

CVE-2004-2239

Buffer overflow in vsybase.c in vpopmail 5.4.2 and earlier might allow attackers to cause a denial of service or execute arbitrary...

CVE-2000-0583

vchkpw program in vpopmail before version 4.8 does not properly cleanse an untrusted format string used in a call to syslog, which allows remote attackers to cause a denial of service via a USER or PASS command that contains arbitrary formatting...

CVE-2000-0091

Buffer overflow in vchkpw/vpopmail POP authentication package allows remote attackers to gain root privileges via a long username or...