CVE-2020-8618

bind: A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer

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Severity

Moderate

Red Hat Product Security

4.9

CVSS 3.1

Review impact separately from score.

Published · June 17, 2020

Updated · February 24, 2026

Description

An assertion check flaw caused by a buffer boundary check condition was found in BIND. A remote attacker could trigger this flaw via a large response, during zone transfer. The highest threat from this vulnerability is to system availability.

Statement

This flaw only affects bind-9.16.x, therefore versions of BIND shipped with Red Hat Products are not affected by this flaw.

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 · 4.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-617 · Reachable Assertion