In uftpd before 2.12, handle_CWD in ftpcmd.c mishandled the path provided by the user, causing a NULL pointer dereference and denial of service, as demonstrated by a CWD /.. command.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14149
Reference (s):
- https://bugs.gentoo.org/726308
- https://github.com/troglobit/uftpd/issues/30
- https://github.com/troglobit/uftpd/releases/tag/v2.12
- SUSE:openSUSE-SU-2020:0865
- URL: http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00052.html