CVE-2019-6473

A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate

Description

An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.

Remediation

Solution:

  • Upgrade to a version of Kea containing a fix, available via https://www.isc.org/downloads. - Kea 1.4.0-P2 - Kea 1.5.0-P1 - Kea 1.6.0

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.68% Top 30%
Vendor Advisory isc.org
Affected: ISC Kea
Published at:
Updated at:

References

Link Tags
https://kb.isc.org/docs/cve-2019-6473 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-6473?
CVE-2019-6473 has been scored as a medium severity vulnerability.
How to fix CVE-2019-6473?
To fix CVE-2019-6473: Upgrade to a version of Kea containing a fix, available via https://www.isc.org/downloads. - Kea 1.4.0-P2 - Kea 1.5.0-P1 - Kea 1.6.0
Is CVE-2019-6473 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-6473 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-6473?
CVE-2019-6473 affects ISC Kea.
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