PCRE Denial of Service Vulnerability

CVE-2015-2327 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

PCRE before 8.36 mishandles the /(((a\2)|(a*)\g<-1>))*/ pattern and related patterns with certain internal recursive back references, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

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