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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Perl-compatible_regular_expression_library | Pcre | * | 7.2 (including) |
| Perl-compatible_regular_expression_library | Pcre | 7.0 (including) | 7.0 (including) |
| Perl-compatible_regular_expression_library | Pcre | 7.1 (including) | 7.1 (including) |