CVE-2018-20164

Name	CVE-2018-20164
Description	An issue was discovered in regex.yaml (aka regexes.yaml) in UA-Parser UAP-Core before 0.6.0. A Regular Expression Denial of Service (ReDoS) issue allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to a value containing a long digit string. (The UAP-Core project contains the vulnerability, propagating to all implementations.)
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	922717

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
uap-core (PTS)	buster	20190213-2	fixed
	bullseye	1:0.12.0-1	fixed
	bookworm	1:0.16.0-1	fixed
	sid, trixie	1:0.18.0-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
uap-core	source	(unstable)	20190213-1			922717

Notes

https://github.com/ua-parser/uap-core/commit/010ccdc7303546cd22b9da687c29f4a996990014
https://github.com/ua-parser/uap-core/commit/156f7e12b215bddbaf3df4514c399d683e6cdadc
https://www.x41-dsec.de/lab/advisories/x41-2018-009-uaparser/