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CVE-2001-0013: Format string vulnerability in nslookupComplain()
Author: Cathy Almond Reference Number: AA-00947 Views: 3151 Created: 2013-05-29 13:58 Last Updated: 2014-10-28 13:58 0 Rating/ Voters

Format string vulnerability in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.

Posting date: 
29 Jan 2001
Program Impacted: 
Versions affected: 
4.9.3 - 4.9.7

There is a format string vulnerability in the nslookupComplain() routine.

The vulnerable buffer is a locally defined character array used to build an error message intended for syslog. Attackers attempting to exploit this vulnerability could do so by sending a specially formatted DNS query to affected BIND servers. If properly constructed, this query could be used to disrupt the normal operation of the DNS server process, resulting in either denial of service or the execution of arbitrary code. If an attacker were able to execute code or commands, they would do so with the same privileges as the BIND process, which are typically superuser privileges.



Active exploits: 
Exploits for this bug exist.

Upgrade to 4.9.8 or later.

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