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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Unbound | Unbound | <= 1.4.12 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.ht
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.ht
- http://osvdb.org/77910
- http://secunia.com/advisories/47326
- http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txtPatchVendor Advisory
- http://www.debian.org/security/2011/dsa-2370
- http://www.kb.cert.org/vuls/id/209659PatchUS Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71868
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.ht
- http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.ht
- http://osvdb.org/77910
- http://secunia.com/advisories/47326
- http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txtPatchVendor Advisory
- http://www.debian.org/security/2011/dsa-2370
- http://www.kb.cert.org/vuls/id/209659PatchUS Government Resource
FAQ
What is CVE-2011-4869?
CVE-2011-4869 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 ma...
How severe is CVE-2011-4869?
CVE-2011-4869 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4869?
Check the references section above for vendor advisories and patch information. Affected products include: Unbound Unbound.