Back to Database
Status published
High
CVE-2011-4869
validator/val_nsec3.c in Unbound before 1.4.13p2 does not properly perform proof...
Vulnerability Description
validator/val_nsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service (daemon crash) via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2011-4869
Credits & Attribution
No credits recorded in the NVD database.
References
- http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txt
- http://secunia.com/advisories/47326
- http://www.kb.cert.org/vuls/id/209659
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71868
- http://www.debian.org/security/2011/dsa-2370
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html
- http://osvdb.org/77910
Affected Vendor
unbound
View all reports →Affected Software
unbound
Vulnerable Versions:
0, 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.7.1, 0.7.2, 0.8, 0.09, 0.10, 0.11, 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11
Timeline
Official Publish:
December 20th, 2011
Last Modified:
August 7th, 2024
Added to House:
July 19th, 2026
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.