Re: Re: Re: Re: Re: CVE-2015-3217: PCRE Library Call Stack Overflow Vulnerability in match()

[Felipe Pena <felipensp () gmail com>]

On Wed, Jun 3, 2015 at 9:58 PM, wen_guanxing
<wen_guanxing () venustech com cn> wrote:
> Although PHP is not setting the match_limit_recursion correctly, this pattern revealed a bug in the zero length 
> recursion detector.Running the pattern with pcretest, the process will also hang.
> It's fair to say that both PHP and PCRE has made a mistake.
> I will report this later to PHP later.

AFAIK this is not a bug on PHP at all, this is a long time known issue
on PCRE lib instead.
Check the documentation for futher details:
http://pcre.org/current/doc/html/pcre2stack.html


-- 
Regards,
Felipe Pena