CVE-2015-2327

Name	CVE-2015-2327
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pcre3 (PTS)	bullseye	2:8.39-13	fixed
	bookworm	2:8.39-15	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency
mongodb	source	(unstable)	(unfixed)	unimportant
pcre3	source	jessie	2:8.35-3.3+deb8u1
pcre3	source	(unstable)	2:8.35-7.2	low

Notes

CVE for bundled version of pcre3 in mongodb
https://jira.mongodb.org/browse/SERVER-17252
Since 1:2.0.0-1 mongodb uses the system pcre3
[wheezy] - pcre3 <no-dsa> (Minor issue)
[squeeze] - pcre3 <no-dsa> (Minor issue)
https://bugs.exim.org/show_bug.cgi?id=1503
Fixed by: http://vcs.pcre.org/pcre?view=revision&revision=1495
https://www.openwall.com/lists/oss-security/2015/05/31/5