There is a bug in pattern compiler than can lead to crash:
$ printf '%s\n%s\n' '/(((a\2)|(a*)\g<-1>))*a?/B' '' | pcretest
PCRE version 8.33 2013-05-28
re> Neoprávněný přístup do paměti (SIGSEGV)
It has been fixed by upstream with:
Author: ph10 <ph10@2f5784b3-3f2a-0410-8824-cb99058d5e15>
Date: Sat Jul 12 18:22:54 2014 +0000
Fix compiler crash/misbehaviour for zero-repeated groups that include a
recursive back reference.
git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1495 2f5784b3-3f2a-0410-8824-cb99058d5e15
All Fedoras are affected.
pcre-8.33-6.fc20 has been submitted as an update for Fedora 20.
pcre-8.32-10.fc19 has been submitted as an update for Fedora 19.
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing pcre-8.33-6.fc20'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
pcre-8.33-6.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.
pcre-8.32-10.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
*** Bug 1285409 has been marked as a duplicate of this bug. ***