A vulnerability has been reported in BIND, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to named not properly clearing matching RRSIG records in the cache when negatively caching a "NO DATA", which can be exploited to cause named to crash when performing subsequent lookups.
The vulnerability is reported in versions 9.0.x to 9.7.2-P2, 9.4-ESV to 9.4-ESV-R3, and 9.6-ESV to 9.6-ESV-R2.
Solution: Update to 9.4-ESV-R4 or newer, 9.6.2-P3 or newer, 9.6-ESV-R3 or newer, or 9.7.2-P3.
Provided and/or discovered by: The vendor credits Shinichi Furuso.
Original Advisory: https://www.isc.org/software/bind/advisories/cve-2010-3613
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Subject: BIND RRSIG / ncache Denial of Service Vulnerability
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