ActivePerl 5.8.x and others, and Larry Wall's Perl 5.6.1 and others, when running on Windows systems, allows attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long argument to the system command, which leads to a stack-based buffer overflow. NOTE: it is unclear whether this bug is in Perl or the OS API that is used by Perl.

Race condition in the rmtree function in the File::Path module in Perl 5.6.1 and 5.8.4 sets read/write permissions for the world, which allows local users to delete arbitrary files and directories, and possibly read files and directories, via a symlink attack.

X-Cart 3.4.3 allows remote attackers to execute arbitrary commands via the perl_binary argument in (1) upgrade.php or (2) general.php.

Directory traversal vulnerability in pdesk.cgi in PerlDesk allows remote attackers to read portions of arbitrary files and possibly execute arbitrary Perl modules via ".." sequences terminated by a %00 (null) character in the lang parameter, which can leak portions of the requested files if a compilation error message occurs.

Buffer overflow in the win32_stat function for (1) ActiveState's ActivePerl and (2) Larry Wall's Perl before 5.8.3 allows local or remote attackers to execute arbitrary commands via filenames that end in a backslash character.

Sambar Server before 6.0 beta 3 allows attackers with physical access to execute arbitrary code via a request with an MS-DOS device name such as com1.pl, con.pl, or aux.pl, which causes Perl to read the code from the associated device.

Perl 5.8.1 on Fedora Core does not properly initialize the random number generator when forking, which makes it easier for attackers to predict random numbers.

Openwebmail in cPanel 5.0, when run using suid Perl, adds the directory in the SCRIPT_FILENAME environment variable to Perl's @INC include array, which allows local users to execute arbitrary code by modifying SCRIPT_FILENAME to reference a directory containing a malicious openwebmail-shared.pl executable.

FUNC.pm in IkonBoard 3.1.2a and earlier, including 3.1.1, does not properly cleanse the "lang" cookie when it contains illegal characters, which allows remote attackers to execute arbitrary code when the cookie is inserted into a Perl "eval" statement.

Buffer overflow in the CGI2PERL.NLM PERL handler in Novell Netware 5.1 and 6.0 allows remote attackers to cause a denial of service (ABEND) via a long input string.