What is the CVSS score of CVE-2014-8602?

CVE-2014-8602 has a CVSS 2.0 base score of 4.3 (Medium). CVSS vector: AV:N/AC:M/Au:N/C:N/I:N/A:P. EPSS exploitation probability: 7.6%.

Is there a patch available for CVE-2014-8602?

Yes, a patch is available for CVE-2014-8602. Update the affected software to the latest version immediately.

Unbound CVE-2014-8602

MEDIUM

Resource Management Errors (CWE-399)

2014-12-11 cve@mitre.org

Denial Of Service Debian Canonical Debian Linux Ubuntu Linux Unbound Nlnetlabs

4.3

CVSS 2.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-399
Impact	CVSS score of 4.3 (MEDIUM). Attack characteristics: network attack vector, M complexity. EPSS exploitation probability: 7.56%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 7.6% exploitation probability (EPSS)

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AnalysisAI

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. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-399. 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. Affected products include: Nlnetlabs Unbound, Canonical Ubuntu Linux, Debian Debian Linux. Version information: before 1.5.1.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.3 MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Confidentiality

None

Integrity

None

Availability

DescriptionCVE.org

Threat Intelligence Overview

EPSS Score

7.6%

Top 8% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 7.6%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +8

CVSS: +22

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

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References

Advisories & patches

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

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