This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2018-6954 →

DEBIAN-CVE-2018-6954

systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of a...

Original description

The description as published by the source.

systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 systemd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"238-1"}]}]

Debian:13 systemd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"238-1"}]}]

Debian:14 systemd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"238-1"}]}]

References

advisory security-tracker.debian.org