Description
Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://secunia.com/advisories/37913 ↗
- http://www.openwall.com/lists/oss-security/2009/10/09/3 ↗
- http://secunia.com/advisories/36996 ↗
- http://unbound.net/pipermail/unbound-users/2009-October/000852.html ↗
- http://www.vupen.com/english/advisories/2009/2875 ↗
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53729 ↗
- http://www.openwall.com/lists/oss-security/2009/10/09/2 ↗
- http://osvdb.org/58836 ↗
- http://www.debian.org/security/2009/dsa-1963 ↗