Multiple buffer overflows in (1) iso2022jp.c or (2) shiftjis.c for Courier-IMAP before 3.0.0, Courier before 0.45, and SqWebMail before 4.0.0 may allow remote attackers to execute arbitrary code "when Unicode character is out of BMP range."

Buffer overflow in qmailadmin allows local users to gain privileges via a long QMAILADMIN_TEMPLATEDIR environment variable.

SQL injection vulnerability in the PostgreSQL auth module for courier 0.40 and earlier allows remote attackers to execute SQL code via the user name.

Inter7 vpopmail 4.10.35 and earlier, when using the MySQL module, compiles authentication information in cleartext into the libvpopmail.a library, which allows local users to obtain the MySQL username and password by inspecting the vpopmail programs that use the library.

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 directives.

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