Read the docs
TI-2014-07066 Aliases CVE-2014-8602GHSA-rmpj-rcj8-qh82

iterator.c in NLnet Labs Unbound before 1.5.1 does not limit delegation chaining, which…

Priority MEDIUM 44CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.

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.

Why it matters now

EPSS 0.32163 98th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*up to 1.5.0VulnerableNLNETLABS
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*14.10VulnerableCanonical
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
  • cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:* Versions up to 1.5.0 Vulnerable ·NLNETLABS
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:* Versions 14.10 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian

Remediation

Red Hat 1 advisory

  • RHSA-2015:2455 Released 2015-11-19 · Red Hat rating Low
    unbound security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) unbound-1.4.20-26.el7, unbound-libs-1.4.20-26.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) unbound-devel-1.4.20-26.el7, unbound-python-1.4.20-26.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) unbound-1.4.20-26.el7, unbound-libs-1.4.20-26.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) unbound-1.4.20-26.el7, unbound-devel-1.4.20-26.el7, unbound-python-1.4.20-26.el7
    • Red Hat Enterprise Linux Server (v. 7) unbound-1.4.20-26.el7, unbound-libs-1.4.20-26.el7, unbound-libs-1.4.20-26.el7.ppc
    • Red Hat Enterprise Linux Server Optional (v. 7) unbound-devel-1.4.20-26.el7, unbound-devel-1.4.20-26.el7.ppc, unbound-python-1.4.20-26.el7
    • Red Hat Enterprise Linux Workstation (v. 7) unbound-1.4.20-26.el7, unbound-libs-1.4.20-26.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) unbound-devel-1.4.20-26.el7, unbound-python-1.4.20-26.el7

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2015:2455
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2015:2455
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2015:2455
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2015:2455
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2015:2455
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2015:2455
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2015:2455
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2015:2455

Timeline

  1. 2026-10-02 Threatist record created from CVE-2014-8602
  2. 2026-10-03 Alias added: GHSA-rmpj-rcj8-qh82

References

Patch 2

Advisory 4

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences