Solaris in.telnetd 8.0 and prior remote exploit. A boundary condition error exists in telnet daemons derived from the BSD telnet daemon. Under certain circumstances, the buffer overflow can occur when a combination of telnet protocol options are received by the daemon. The function responsible for processing the options prepares a response within a fixed sized buffer, without performing any bounds checking. This exploit has been tested against Solaris 7 & Solaris 8 (sparc).
