The map_yp_alias function in functions/imap_general.php in
SquirrelMail before 1.4.19-1 on Debian GNU/Linux, and possibly other
operating systems and versions, allows remote attackers to execute
arbitrary commands via shell metacharacters in a username string that
is used by the ypmatch program. NOTE: this issue exists because of an
incomplete fix for CVE-2009-1579.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20090521 [SECURITY] [DSA 1802-2] New squirrelmail packages correct incomplete fix
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discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
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list, which standardizes names for security