Perl-Compatible Regular Expression (PCRE) library before 6.7 does not properly calculate the compiled memory allocation for regular expressions that involve a quantified "subpattern containing a named recursion or subroutine reference," which allows context-dependent attackers to cause a denial of service (error or crash).

Perl-Compatible Regular Expression (PCRE) library before 6.7 does not properly calculate the compiled memory allocation for regular expressions that involve a quantified "subpattern containing a named recursion or subroutine reference," which allows context-dependent attackers to cause a denial of service (error or crash).

pcre miscalculation of memory requirements for malformed Posix character class pcre miscalculation of memory requirements for repeated subpattern containing a named recursion or subroutine reference pcre integer overflow pcre miscalculation of memory requirements if options are changed during pattern compilation