PT-2019-18107 · Isc · Kea

Published 2019-08-28 · Updated 2020-08-24 · CVE-2019-6474

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Kea versions 1.4.0 through 1.5.0 Kea version 1.6.0-beta1 Kea version 1.6.0-beta2

Description A missing check on incoming client requests can cause the Kea server's lease storage to contain invalid leases. When the server restarts and tries to load these leases, it may give up if the number of invalid leases exceeds a hard-coded limit.

Recommendations For versions 1.4.0 through 1.5.0, update to a version outside of this range to resolve the issue. For version 1.6.0-beta1, update to a version outside of the beta range to resolve the issue. For version 1.6.0-beta2, update to a version outside of the beta range to resolve the issue. As a temporary workaround, consider restricting incoming client requests to minimize the risk of exploitation.

Fix

Missing Release of Resource after Effective Lifetime

Weakness Enumeration

CWE-772

Related Identifiers

CVE-2019-6474

Affected Products

Kea

References · 10

• https://osv.dev/vulnerability/CVE-2019-6474 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-6474 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-6474 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-6474 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2019-6474 · Vendor Advisory
• https://kb.isc.org/docs/cve-2019-6474 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-6474 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-6474 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2019-6474 · Vendor Advisory
• https://security.alpinelinux.org/vuln/CVE-2019-6474 · Note