Vulnerability CVE-2014-8602
Published: 2014-12-10   Modified: 2014-12-11

Description:
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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
NLnet Labs Unbound cause a denial of service
Florian Maury (...
14.12.2014

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Nlnet labs -> Unbound 
Nlnetlabs -> Unbound 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://cert.ssi.gouv.fr/site/CERTFR-2014-AVI-512/index.html
http://unbound.net/downloads/patch_cve_2014_8602.diff
http://www.debian.org/security/2014/dsa-3097
http://www.kb.cert.org/vuls/id/264212
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/71589
http://www.ubuntu.com/usn/USN-2484-1
https://unbound.net/downloads/CVE-2014-8602.txt
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