CVE-1999-0848: fdmax bug
  • 28 Oct 2014
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CVE-1999-0848: fdmax bug

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Denial of service in BIND named via consuming more than "fdmax" file descriptors




          Posting date: 

                11 Nov 1999        


          Program Impacted: 



          Versions affected: 

                8.1 - 8.2-p1        









                A bug in the handling of file descriptors results

in a vulnerability that will crash the DNS server when more than FD_SETSIZE descriptors are consumed.


                In the "options" section of named.conf, set      

where # is less than FD_SETSIZE (as typically found in /usr/include/sys/select.h)

  Active exploits: 

                Scripts are available that can implement this attack.        



                Upgrade to BIND 8.2.1 or later



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