CVE-2017-6004

Name	CVE-2017-6004
Description	The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled version) allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted regular expression.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severity	medium (attack range: remote)
Debian Bugs	855405

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pcre3 (PTS)	wheezy	1:8.30-5	fixed
	jessie	2:8.35-3.3+deb8u4	fixed
	stretch	2:8.39-3	fixed
	buster	2:8.39-4	fixed
	sid	2:8.39-5	fixed

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

Package	Type	Release	Fixed Version	Urgency	Debian Bugs
pcre3	source	(unstable)	2:8.39-2.1	medium	855405
pcre3	source	jessie	(not affected)
pcre3	source	wheezy	(not affected)

Notes

[jessie] - pcre3 <not-affected> (Vulnerable code introduced later)
[wheezy] - pcre3 <not-affected> (Vulnerable code introduced later)
https://vcs.pcre.org/pcre/code/trunk/pcre_jit_compile.c?r1=1676&r2=1680&view=patch
https://bugs.exim.org/show_bug.cgi?id=2035