PCRE before 8.36 mishandles the /((?(R)a|(?1)))+/ pattern and related patterns with certain recursion, 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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2328
Reference (s):
- BID:74924
- URL: http://www.securityfocus.com/bid/74924
- http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup
- http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html