{"id":"CVE-2022-39028","details":"telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval, the telnet service would become unavailable after inetd logs a \"telnet/tcp server failing (looping), service terminated\" error. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8.","modified":"2026-08-12T03:30:36.931467014Z","published":"2022-08-30T00:00:00Z","related":["SUSE-SU-2022:3471-1","SUSE-SU-2022:3735-1","SUSE-SU-2022:3783-1","openSUSE-SU-2024:12436-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39028.json","unresolved_ranges":[{"source":"DESCRIPTION","extracted_events":[{"fixed":"2.3"},{"introduced":"krb5-appl"},{"fixed":"1.0.3"}]}],"cna_assigner":"mitre"},"references":[{"type":"WEB","url":"https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=113da8021710d871c7dd72d2a4d5615d42d64289"},{"type":"WEB","url":"https://lists.gnu.org/archive/html/bug-inetutils/2022-08/msg00002.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39028.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-39028"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00033.html"},{"type":"ARTICLE","url":"https://pierrekim.github.io/blog/2022-08-24-2-byte-dos-freebsd-netbsd-telnetd-netkit-telnetd-inetutils-telnetd-kerberos-telnetd.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.hadrons.org/cgit/debian/pkgs/inetutils.git","events":[{"introduced":"0"},{"fixed":"113da8021710d871c7dd72d2a4d5615d42d64289"}],"database_specific":{"source":"REFERENCES"}}],"versions":["2.0-1","2.3-4","2.3-3","2.3-2","2.3-1","2.2-2","2.2-1","2.1-2","2.1-1","1.9.4.91-1","1.9.4.90-1","1.9.4-13","1.9.4-12","1.9.4-11","1.9.4-10","1.9.4-9","1.9.4-8","1.9.4-7","1.9.4-6","1.9.4-5","1.9.4-4","1.9.4-3","1.9.4-2","1.9.4-1","1.9.3-2","1.9.3-1","1.9.2.39.3a460-3","1.9.2.39.3a460-2","1.9.2.39.3a460-1","1.9.2-1","1.9.1.363-bbc1-1","1.9.1.306-0a482-1","1.9.1.282-e8541-1","1.9-2","1.9-1","1.8-6","1.8-5","1.8-4","1.8-3","1.8-2","1.8-1","1.6-3","1.6-1","1.6-2","1.5.dfsg.1-5","1.5.dfsg.1-6","1.5.dfsg.1-7","1.5.dfsg.1-8","1.5.dfsg.1-9","1.5.dfsg.1-3","1.5.dfsg.1-4","1.4.3+20060719-3","1.5.dfsg.1-1","1.5.dfsg.1-2","1.4.3+20060719-2","1.4.3+20060719-1","1.4.3+20051212-4","1.4.3+20051212-1","1.4.3+20051212-2","1.4.3+20051212-3","1.4.2+20040207-5","1.4.2+20040207-6","1.4.2+20040207-4","1.4.2+20040207-3","1.4.2+20040207-1","1.4.2+20040207-2","1.4.2+20030703-7","1.4.2+20030703-1","1.4.2+20030703-8","1.4.2+20031022-1","20030701-1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-39028.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/krb5/krb5","events":[{"introduced":"0"},{"last_affected":"bad536f50107a1692ad4e19d6e48f31fb2d3a4b6"}],"database_specific":{"cpe":"cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"1.0.3"}],"source":"CPE_RANGE"}}],"versions":["krb5-1.0.3-final"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-39028.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/krb5/krb5-appl","events":[{"introduced":"0"},{"last_affected":"a6c9e0baea1a1030241fe00b0431e5ab454c5fa3"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.0.3"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*"}}],"versions":["krb5-appl-1.0.3"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-39028.json"}}],"schema_version":"1.9.0"}