What is CVE-2019-6474?

CVE-2019-6474 is a medium-severity vulnerability in Isc Kea, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.7/10. Published 2019-10-16.

How severe is CVE-2019-6474?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Vulnerability in Isc Kea

CVE-2019-6474

A missing check on incoming client requests can be exploited to cause a situation where the Kea server's lease storage contains leases which are rejected as invalid when the server tries to load leases from storage on restart. If the number of such leases exceeds a hard-coded limit in the Kea code, a server trying to restart will conclude that there is a problem with its lease store and give up. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2

EPSS: 0.007 (49.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Isc Kea — versions 1.6.0-beta2, 1.4.0 to 1.5.0, 1.6.0-beta1

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

References

security-officer@isc.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2019-6474?: CVE-2019-6474 is a medium-severity vulnerability in Isc Kea, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.7/10. Published 2019-10-16.
How severe is CVE-2019-6474?: Medium severity. CVSS v3 base score is 5.7 out of 10.