CVE-2015-8853

Name	CVE-2015-8853
Description	The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severity	medium
Debian Bugs	821848

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
perl (PTS)	stretch	5.24.1-3+deb9u7	fixed
	stretch (security)	5.24.1-3+deb9u5	fixed
	buster	5.28.1-6+deb10u1	fixed
	bullseye	5.32.1-2	fixed
	sid	5.32.1-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
perl	source	jessie	5.20.2-3+deb8u5
perl	source	(unstable)	5.22.1-1			821848

Notes

[wheezy] - perl <no-dsa> (Minor issue)
https://rt.perl.org/Public/Bug/Display.html?id=123562
http://perl5.git.perl.org/perl.git/commitdiff/22b433eff9a1ffa2454e18405a56650f07b385b5
https://www.openwall.com/lists/oss-security/2016/04/20/5