CVE-2018-19052

NameCVE-2018-19052
DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2887-1
Debian Bugs913528

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lighttpd (PTS)bullseye (security), bullseye1.4.59-1+deb11u2fixed
bookworm1.4.69-1fixed
sid, trixie1.4.76-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lighttpdsourcestretch1.4.45-1+deb9u1DLA-2887-1
lighttpdsource(unstable)1.4.52-1913528

Notes

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

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