CVE-2018-19052

Name	CVE-2018-19052
Description	An issue was discovered in mod_alias_physical_handler in mod_alias.c in lighttpd before 1.4.50. There is potential ../ path traversal of a single directory above an alias target, with a specific mod_alias configuration where the matched alias lacks a trailing '/' character, but the alias target filesystem path does have a trailing '/' character.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2887-1
Debian Bugs	913528

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
lighttpd (PTS)	jessie, jessie (lts)	1.4.35-4+deb8u1	vulnerable
	stretch (security), stretch (lts), stretch	1.4.45-1+deb9u1	fixed
	buster (security), buster, buster (lts)	1.4.53-4+deb10u3	fixed
	bullseye (security), bullseye	1.4.59-1+deb11u2	fixed
	bookworm	1.4.69-1	fixed
	sid, trixie	1.4.76-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
lighttpd	source	wheezy	(unfixed)	end-of-life
lighttpd	source	stretch	1.4.45-1+deb9u1		DLA-2887-1
lighttpd	source	(unstable)	1.4.52-1			913528

[jessie] - lighttpd <no-dsa> (Minor issue)
https://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1