Vulnerability in Unbound
CVE-2011-4869
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.8 (High). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.030 (86.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
Affected products
- Unbound — versions 0.0, 0.1, 0.2
Weakness classification (CWE)
References
- unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txt (Patch, Vendor Advisory)
- secunia.com/advisories/47326 (third-party-advisory)
- www.kb.cert.org/vuls/id/209659 (US Government Resource, Patch, third-party-advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/71868 (vdb-entry)
- www.debian.org/security/2011/dsa-2370 (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html (vendor-advisory)
- osvdb.org/77910 (vdb-entry)