Total vulnerabilities in the database
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.
| Software | From | Fixed in |
|---|---|---|
| gnu / inetutils | - | 2.3.x |
| mit / kerberos_5 | - | 1.0.3.x |
| debian / debian_linux | 10.0 | 10.0.x |
| netkit-telnet_project / netkit-telnet | - | 0.17.x |