CVE-2014-8602
MEDIUM severity · CVSS 4.3 · CWE-399
4.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexity—
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)25%
AV:N/AC:M/Au:N/C:N/I:N/A:P
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://unbound.net/downloads/patch_cve_2014_8602.diff ↗
Additional information
- NVD record
- http://unbound.net/downloads/patch_cve_2014_8602.diffPatch
- https://unbound.net/downloads/CVE-2014-8602.txtPatch
- http://cert.ssi.gouv.fr/site/CERTFR-2014-AVI-512/index.htmlAdvisory
- http://www.debian.org/security/2014/dsa-3097Advisory
- http://www.kb.cert.org/vuls/id/264212Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/71589
- http://www.ubuntu.com/usn/USN-2484-1Advisory