Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2011-4869
- cpe:2.3:a:unbound:unbound:*:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.6:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.5:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.7:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.6:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.10:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.9:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.09:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.8:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.3:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.2:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.8:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.7:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.7.2:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.1:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.0:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.11:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.4:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.11:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.10:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.5:*:*:*:*:*:*:*
- cpe:2.3:a:unbound:unbound:0.4:*:*:*:*:*:*:*
Threat overview for CVE-2011-4869
Top countries where our scanners detected CVE-2011-4869
Top open port discovered on systems with this issue
53
IPs affected by CVE-2011-4869 8
Find out if you* are
affected by CVE-2011-4869!
*Directly or indirectly through your vendors, service providers and 3rd parties.
Powered by
attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2011-4869
1.56%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-4869
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST |
CWE ids for CVE-2011-4869
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-4869
-
http://www.kb.cert.org/vuls/id/209659
VU#209659 - Unbound multiple denial-of-service vulnerabilitiesPatch;US Government Resource
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/71868
Unbound NSEC3 denial of service CVE-2011-4869 Vulnerability Report
-
http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txt
Patch;Vendor Advisory
-
http://www.debian.org/security/2011/dsa-2370
Debian -- Security Information -- DSA-2370-1 unbound
-
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html
[SECURITY] Fedora 16 Update: unbound-1.4.14-1.fc16
-
http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html
[SECURITY] Fedora 15 Update: unbound-1.4.14-1.fc15
Jump to