iDEFENSE Security Advisory 03.28.05 - Remote exploitation of a buffer overflow vulnerability in multiple telnet clients could allow the execution of arbitrary code. The vulnerability specifically exists in the env_opt_add() function of telnet.c. iDEFENSE has confirmed the existance of the vulnerability in the telnet client included in the Kerberos V5 Release 1.3.6 package and the client included in the SUNWtnetc package of Solaris 5.9. It is suspected that most BSD based telnet clients are affected by this vulnerability.
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