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Published: 13/10/2009 Updated: 17/08/2017

CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10

VMScore: 668

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Unbound prior to 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote malicious users to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses.

Vulnerable Product	Search on Vulmon	Subscribe to Product
nlnetlabs unbound 1.3.2
nlnetlabs unbound 1.3.1
nlnetlabs unbound 1.0.1
nlnetlabs unbound 1.0.0
nlnetlabs unbound 0.7
nlnetlabs unbound 0.6
nlnetlabs unbound 1.2.0
nlnetlabs unbound 1.1.1
nlnetlabs unbound 0.09
nlnetlabs unbound 0.8
nlnetlabs unbound 0.3
nlnetlabs unbound 0.2
nlnetlabs unbound 0.1
nlnetlabs unbound
nlnetlabs unbound 1.1.0
nlnetlabs unbound 1.0.2
nlnetlabs unbound 0.7.2
nlnetlabs unbound 0.7.1
nlnetlabs unbound 0.0
nlnetlabs unbound 1.3.0
nlnetlabs unbound 1.2.1
nlnetlabs unbound 0.11
nlnetlabs unbound 0.10
nlnetlabs unbound 0.5
nlnetlabs unbound 0.4

CWE-310 http://www.vupen.com/english/advisories/2009/2875 http://secunia.com/advisories/36996 http://www.openwall.com/lists/oss-security/2009/10/09/2 http://www.openwall.com/lists/oss-security/2009/10/09/3 http://osvdb.org/58836 http://unbound.net/pipermail/unbound-users/2009-October/000852.html http://www.debian.org/security/2009/dsa-1963 http://secunia.com/advisories/37913 https://exchange.xforce.ibmcloud.com/vulnerabilities/53729 https://nvd.nist.gov

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CVE-2009-3602

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