Vulnerability Details : CVE-2014-8602
iterator.c in NLnet Labs Unbound before 1.5.1 does not limit delegation chaining, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a large or infinite number of referrals.
Vulnerability category: Denial of service
Products affected by CVE-2014-8602
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
- cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2014-8602
30.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 97 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2014-8602
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST |
CWE ids for CVE-2014-8602
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-8602
-
http://www.kb.cert.org/vuls/id/264212
VU#264212 - Recursive DNS resolver implementations may follow referrals infinitelyThird Party Advisory;US Government Resource
-
http://cert.ssi.gouv.fr/site/CERTFR-2014-AVI-512/index.html
Page introuvable – CERT-FRThird Party Advisory
-
http://www.securityfocus.com/bid/71589
Unbound CVE-2014-8602 Remote Denial of Service Vulnerability
-
http://www.ubuntu.com/usn/USN-2484-1
USN-2484-1: Unbound vulnerability | Ubuntu security noticesThird Party Advisory
-
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
Oracle Linux Bulletin - October 2015
-
http://unbound.net/downloads/patch_cve_2014_8602.diff
Patch
-
http://www.debian.org/security/2014/dsa-3097
Debian -- Security Information -- DSA-3097-1 unboundThird Party Advisory
-
https://unbound.net/downloads/CVE-2014-8602.txt
Patch;Vendor Advisory
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