CVE-2015-8389: pcre: infinite recursion in JIT compiler when processing certain patterns (8.38/21)

Severity: Critical

CVSS Score: 9.8

PCRE before 8.38 mishandles the /(?:|a|){100}x/ pattern and related patterns, which allows remote attackers to cause a denial of service (infinite recursion) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.