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.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-ftp" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-ftp-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-ftpd" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-ftpd-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-inetd" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-inetd-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-ping" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-ping-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-syslogd" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-syslogd-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-talk" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-talk-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-talkd" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-talkd-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-telnet" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-telnet-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-telnetd" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-telnetd-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-tools" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-tools-dbgsym" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-traceroute" }, { "binary_version": "2:1.9.4-11ubuntu0.2", "binary_name": "inetutils-traceroute-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-ftp" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-ftp-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-ftpd" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-ftpd-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-inetd" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-inetd-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-ping" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-ping-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-syslogd" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-syslogd-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-talk" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-talk-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-talkd" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-talkd-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-telnet" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-telnet-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-telnetd" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-telnetd-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-tools" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-tools-dbgsym" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-traceroute" }, { "binary_version": "2:2.2-2ubuntu0.1", "binary_name": "inetutils-traceroute-dbgsym" } ] }