ISC BIND 8 Invalid Expiry Time Denial Of Service Vulnerability

A denial of service vulnerability has been reported for ISC BIND 8. The vulnerability is due to caching of SIG RR (resource records) with invalid expiry times.

An attacker who controls an authoritative name server may be able to cause vulnerable BIND 8 servers to cache invalid SIG RR elements. When the vulnerable DNS server attempts to reference the SIG RR elements it will result in the denial of service condition.


 

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