Security Advisory
CVE-2007-1661
CVE vulnerability detail — eXtreme Datacenter Security Operations
Description
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.