Read the docs
TI-2011-00347 Aliases CVE-2011-0413GHSA-4pw9-88hx-8fcw

The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before…

Priority MEDIUM 59CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address.

Why it matters now

EPSS 0.32582 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 · 29

CPEVersionsRoleVendor
cpe:2.3:a:isc:dhcp:4.0:*:*:*:*:*:*:*4.0VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.0:*:*:*:*:*:*:*4.0.0VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.1:-:*:*:*:*:*:*4.0.1VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.1:b1:*:*:*:*:*:*4.0.1 b1VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.1:rc1:*:*:*:*:*:*4.0.1 rc1VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.2:-:*:*:*:*:*:*4.0.2VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.2:b1:*:*:*:*:*:*4.0.2 b1VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.2:b2:*:*:*:*:*:*4.0.2 b2VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.2:b3:*:*:*:*:*:*4.0.2 b3VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.2:rc1:*:*:*:*:*:*4.0.2 rc1VulnerableISC
  • cpe:2.3:a:isc:dhcp:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.1:-:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.1:b1:*:*:*:*:*:* Versions 4.0.1 b1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.1:rc1:*:*:*:*:*:* Versions 4.0.1 rc1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.2:-:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.2:b1:*:*:*:*:*:* Versions 4.0.2 b1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.2:b2:*:*:*:*:*:* Versions 4.0.2 b2 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.2:b3:*:*:*:*:*:* Versions 4.0.2 b3 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.2:rc1:*:*:*:*:*:* Versions 4.0.2 rc1 Vulnerable ·ISC
Show 19 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:isc:dhcp:4.0.3:-:*:*:*:*:*:*4.0.3VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.3:b1:*:*:*:*:*:*4.0.3 b1VulnerableISC
cpe:2.3:a:isc:dhcp:4.0.3:rc1:*:*:*:*:*:*4.0.3 rc1VulnerableISC
cpe:2.3:a:isc:dhcp:4.1.0:-:*:*:*:*:*:*4.1.0VulnerableISC
cpe:2.3:a:isc:dhcp:4.1.1:-:*:*:*:*:*:*4.1.1VulnerableISC
cpe:2.3:a:isc:dhcp:4.1.1:b1:*:*:*:*:*:*4.1.1 b1VulnerableISC
cpe:2.3:a:isc:dhcp:4.1.1:b2:*:*:*:*:*:*4.1.1 b2VulnerableISC
cpe:2.3:a:isc:dhcp:4.1.1:b3:*:*:*:*:*:*4.1.1 b3VulnerableISC
cpe:2.3:a:isc:dhcp:4.1.1:rc1:*:*:*:*:*:*4.1.1 rc1VulnerableISC
cpe:2.3:a:isc:dhcp:4.1.2:-:*:*:*:*:*:*4.1.2VulnerableISC
cpe:2.3:a:isc:dhcp:4.0-esv:*:*:*:*:*:*:*4.0-esvVulnerableISC
cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:*4.1-esvVulnerableISC
cpe:2.3:a:isc:dhcp:4.2.0:-:*:*:*:*:*:*4.2.0VulnerableISC
cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:*4.2.0 a1VulnerableISC
cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:*4.2.0 a2VulnerableISC
cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:*4.2.0 b1VulnerableISC
cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:*4.2.0 b2VulnerableISC
cpe:2.3:a:isc:dhcp:4.2.0:p1:*:*:*:*:*:*4.2.0 p1VulnerableISC
cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:*4.2.0 rc1VulnerableISC
  • cpe:2.3:a:isc:dhcp:4.0.3:-:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.3:b1:*:*:*:*:*:* Versions 4.0.3 b1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0.3:rc1:*:*:*:*:*:* Versions 4.0.3 rc1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.1.0:-:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.1.1:-:*:*:*:*:*:* Versions 4.1.1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.1.1:b1:*:*:*:*:*:* Versions 4.1.1 b1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.1.1:b2:*:*:*:*:*:* Versions 4.1.1 b2 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.1.1:b3:*:*:*:*:*:* Versions 4.1.1 b3 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.1.1:rc1:*:*:*:*:*:* Versions 4.1.1 rc1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.1.2:-:*:*:*:*:*:* Versions 4.1.2 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.0-esv:*:*:*:*:*:*:* Versions 4.0-esv Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:* Versions 4.1-esv Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.2.0:-:*:*:*:*:*:* Versions 4.2.0 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:* Versions 4.2.0 a1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:* Versions 4.2.0 a2 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:* Versions 4.2.0 b1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:* Versions 4.2.0 b2 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.2.0:p1:*:*:*:*:*:* Versions 4.2.0 p1 Vulnerable ·ISC
  • cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:* Versions 4.2.0 rc1 Vulnerable ·ISC

Remediation

Red Hat 1 advisory

  • RHSA-2011:0256 Released 2011-02-15 · Red Hat rating Moderate
    dhcp security update
    • Red Hat Enterprise Linux Desktop (v. 6) dhclient-12:4.1.1-12.P1.el6_0.2, dhcp-12:4.1.1-12.P1.el6_0.2
    • Red Hat Enterprise Linux Desktop Optional (v. 6) dhcp-12:4.1.1-12.P1.el6_0.2, dhcp-devel-12:4.1.1-12.P1.el6_0.2
    • Red Hat Enterprise Linux HPC Node (v. 6) dhclient-12:4.1.1-12.P1.el6_0.2, dhcp-12:4.1.1-12.P1.el6_0.2
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) dhcp-12:4.1.1-12.P1.el6_0.2, dhcp-devel-12:4.1.1-12.P1.el6_0.2
    • Red Hat Enterprise Linux Server (v. 6) dhclient-12:4.1.1-12.P1.el6_0.2, dhcp-12:4.1.1-12.P1.el6_0.2
    • Red Hat Enterprise Linux Server Optional (v. 6) dhcp-12:4.1.1-12.P1.el6_0.2, dhcp-devel-12:4.1.1-12.P1.el6_0.2, dhcp-devel-12:4.1.1-12.P1.el6_0.2.ppc
    • Red Hat Enterprise Linux Workstation (v. 6) dhclient-12:4.1.1-12.P1.el6_0.2, dhcp-12:4.1.1-12.P1.el6_0.2
    • Red Hat Enterprise Linux Workstation Optional (v. 6) dhcp-12:4.1.1-12.P1.el6_0.2, dhcp-devel-12:4.1.1-12.P1.el6_0.2

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2011:0256
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2011:0256
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2011:0256
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2011:0256
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:0256
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2011:0256
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2011:0256
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2011:0256
Not affected: 2 products
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-0413
  2. 2026-10-03 Alias added: GHSA-4pw9-88hx-8fcw

References

Advisory 7

Other 6

  • TI-2011-00858 dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and… CVSS 2.0HIGH 7.5
  • TI-2017-02364 Failure to properly clean up closed OMAPI connections can exhaust available sockets CVSS 3.1HIGH 7.5
  • TI-2015-07072 ISC DHCP 4.x before 4.1-ESV-R12-P1, 4.2.x, and 4.3.x before 4.3.3-P1 allows remote… CVSS 3.0MEDIUM 6.5
  • TI-2016-02318 ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the… CVSS 3.1MEDIUM 5.9
  • TI-2009-00661 Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC… CVSS 2.0HIGH 10.0
  • TI-2010-02068 ISC DHCP 4.1 before 4.1.1-P1 and 4.0 before 4.0.2-P1 allows remote attackers to cause a… CVSS 2.0MEDIUM 5.0
See all 24 →

Sources

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