The pluggable authentication module for mysql (pam_mysql) before 0.4.7 does not properly cleanse user input when constructing SQL statements, which allows attackers to obtain plaintext passwords or hashes.

Unspecified vulnerability in the SQL logging facility in PAM-MySQL 0.6.x before 0.6.2 and 0.7.x before 0.7pre3 allows remote attackers to cause a denial of service (segmentation fault) via unspecified vectors, probably involving the pam_mysql_sql_log function when being used in vsftpd, which does not include the IP address argument to an sprintf call.