46776 : ISC BIND DNS Query ID Field Prediction Cache Poisoning
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Views This Week Views All Time Added to OSVDB Last Modified Modified (since 2008) Percent Complete
3 3566 almost 6 years ago 7 months ago 32 times 65%


Disclosure Date


BIND contains a flaw that may allow a malicious user to insert invalid records into a recursive DNS server cache. The issue is triggered by a flaw in the DNS protocol, which does not require sufficient randomness in selecting Query ID and UDP source port for queries to authoritative servers. It is possible that the flaw may allow an attacker to spoof a DNS response to a legitimate query resulting in a loss of integrity.


Location: Remote / Network Access
Impact: Loss of Integrity
Solution: Upgrade
Disclosure: Vendor Verified


Upgrade to version 9.5.0-P1, 9.4.2-P1, 9.3.5-P1, 9.5.1b1, 9.4.3b2 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.


Unknown or Incomplete


Tools & Filters


13948 13949
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4578 4601 4682


Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 6.4
Source: nvd.nist.gov | Generated: 2008-07-09 | Disagree?

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_0 Integrity_impact_1 Availability_impact_1


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