IBM AIX contains a flaw that may allow a remote denial of service. The issue is triggered when telnetd receives an attack and system runs out of message blocks and hangs, and will result in loss of availability for the telnet service and all other tty activity to hang.
Remote / Network Access
Loss of Availability
Upgrade AIX using the patch numbers AIX 4.1: IX73427, AIX 4.2: IX73580 and AIX 4.3: IX73214 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
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