SSH with Kerberos5 and TGT passing enabled buffer overflow
| ssh-kerberos5-tgt-bo (8328) |  High Risk |
Description:
SSH (Secure Shell) client is vulnerable to a buffer overflow in the "sshconnect.c" file. By spoofing DNS (Domain Name System) records with a long DNS hostname containing 128 bytes or more, a remote attacker can overflow a buffer and execute arbitrary code on the system.
Platforms Affected:
- MIT, Kerberos 5
- SSH, SSH 1.2.26
Remedy:
Apply the patch for this vulnerability included in the NetSpace BugTraq Mailing List posting dated 5 Nov 1998 02:38:51 +0200. See References.
Consequences:
Gain Privileges
References:
- NetSpace BugTraq Mailing List, 5 Nov 1998 02:38:51 +0200, security patch for ssh-1.2.26 kerberos code at http://lists.netspace.org/cgi-bin/wa?A2=ind9811A&L=bugtraq&P=R4814.
- CVE-1999-1321: Buffer overflow in ssh 1.2.26 client with Kerberos V enabled could allow remote attackers to cause a denial of service or execute arbitrary commands via a long DNS hostname that is not properly handled during TGT ticket passing.
- OSVDB ID: 4883: SSH Client Kerberos 5 TGT Overflow
Reported:
Nov 05, 1998
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