Description
telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd service credentials support added to the login(1) implementation of util-linux in release 2.40. This is related to client control over the CREDENTIALS_DIRECTORY environment variable, and requires an unprivileged local user to create a login.noauth file.
Problem types
CWE-829 Inclusion of Functionality from Untrusted Control Sphere
Product status
Any version
References
www.openwall.com/lists/oss-security/2026/02/27/3
lists.gnu.org/...ve/html/bug-inetutils/2026-02/msg00000.html
git.hadrons.org/...=3953943d8296310485f98963883a798545ab9a6c
lists.gnu.org/...ve/html/bug-inetutils/2026-02/msg00012.html
www.openwall.com/lists/oss-security/2026/02/24/1