PT-2011-5151

CVE-2011-4869

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Published

2011-12-20

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Updated

2017-08-29

Description by

CVSS 2.0
7.8
High
MetricsAV:N/AC:L/Au:N/C:N/I:N/A:C
Name of the Vulnerable Software and Affected Versions Unbound versions prior to 1.4.13p2
Description The issue is related to improper proof processing for NSEC3-signed zones in the validator/val nsec3.c component. This can be exploited by remote DNS servers sending a malformed response that lacks expected NSEC3 records, leading to a denial of service (daemon crash).
Recommendations For versions prior to 1.4.13p2, update to version 1.4.13p2 or later to resolve the issue.
Exploitability
Fix
Researchers
Vendors
Affected products
Weakness enumeration
CWE-399
Related identifiers
CVE-2011-4869
DSA-2370-1
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