Perl-Compatible Regular Expression (PCRE) library before 7.3 reads past the end of the string when searching for unmatched brackets and parentheses, which allows context-dependent attackers to cause a denial of service (crash), possibly involving forward references.

Perl-Compatible Regular Expression (PCRE) library before 7.3 backtracks too far when matching certain input bytes against some regex patterns in non-UTF-8 mode, which allows context-dependent attackers to obtain sensitive information or cause a denial of service (crash), as demonstrated by the “X?d” and “P{L}?d” patterns.

Windows Mail in Microsoft Windows Vista might allow user-assisted remote attackers to execute certain programs via a link to a (1) local file or (2) UNC share pathname in which there is a directory with the same base name as an executable program at the same level, as demonstrated using C:/windows/system32/winrm (winrm.cmd) and migwiz (migwiz.exe).

Stack-based buffer overflow in the file_compress function in minigzip (Modules/zlib) in Python 2.5 allows context-dependent attackers to execute arbitrary code via a long file argument.