CVE-2019-25037

unbound: assertion failure and denial of service in dname_pkt_copy via an invalid packet

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · December 11, 2019

Updated · November 22, 2025

Description

A flaw was found in unbound. A reachable assertion in the dname_pkt_copy function can be triggered by sending invalid packets to the server. The highest threat from this vulnerability is to service availability.

Statement

Upstream has disputed this CVE.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-617 · Reachable Assertion