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CVE-2002-1221: BIND 8 fails to properly dereference cache SIG RR elements with invalid expiry times

  • Updated on 28 Oct 2014
  • 1 minute to read
  • Contributors 

De-referencing null pointer for certain signature expire values.







          Posting date: 

                12 Nov 2002        


          Program Impacted: 



          Versions affected: 

                8.3.0 - 8.3.3        









                Remote attackers can cause a denial of service 

(crash) via SIG RR elements with invalid expiry times, which are removed from the internal BIND database and later cause a null dereference.


                Disable recursion, if possible.



  Active exploits: 

                None known at this time.        



                Upgrade to BIND 8.3.4 or later




ISC would like to thank Internet Security Systems for bringing this to our attention.

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