CVE-2019-6472: A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate

Published Oct 16, 2019
·
Updated

A packet containing a malformed DUID can cause the Kea DHCPv6 server process (kea-dhcp6) to exit due to an assertion failure. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.

Affected Software

17 affected componentsFixes available
ISC kea>=1.4.0<=1.5.0
ISC kea=1.6.0-beta1
ISC kea=1.6.0-beta2
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0
alpine/kea>=1.4.0<1.7.2-r0
1.7.2-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade alpine/kea to a version that resolves this vulnerability.

    Fixed in 1.7.2-r0
  2. Upgrade

    Upgrade Kea to a version that resolves this vulnerability.

    Fixed in 1.4.0-P2
  3. Upgrade

    Upgrade Kea to a version that resolves this vulnerability.

    Fixed in 1.5.0-P1
  4. Upgrade

    Upgrade Kea to a version that resolves this vulnerability.

    Fixed in 1.6.0

Event History

Oct 16, 2019
CVE Published
via MITRE·05:22 PM
Data Sourced
via MITRE·05:22 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·06:15 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is CVE-2019-6472?

CVE-2019-6472 is a vulnerability in the Kea DHCPv6 server process (kea-dhcp6) that can be triggered by a packet containing a malformed DUID, leading to an assertion failure and the server process exiting.

2

Which versions of Kea DHCPv6 server are affected by CVE-2019-6472?

Versions 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2 of the Kea DHCPv6 server are affected by CVE-2019-6472.

3

What is the severity of CVE-2019-6472?

CVE-2019-6472 has a severity rating of 6.5, classified as medium.

4

How can I fix CVE-2019-6472?

To fix CVE-2019-6472, update your Kea DHCPv6 server to a version that is not affected by the vulnerability.

5

Where can I find more information about CVE-2019-6472?

You can find additional information about CVE-2019-6472 at the following reference link: https://kb.isc.org/docs/cve-2019-6472

Company

Resources

Contact

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