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CVE-2024-24989

nginx: NULL pointer dereference in HTTP/3

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · February 14, 2024

Updated · November 21, 2025

Description

A flaw was found in the nginx HTTP/3 implementation. This issue may allow an attacker to use a specially crafted QUIC session to trigger a NULL pointer dereference error, causing a worker process to crash, leading to a denial of service.

Statement

The nginx package as shipped in Red Hat Enterprise Linux 8, 9 and RHSCL is not affected by this vulnerability because support for HTTP3 is not enabled and the vulnerable code was introduced in a newer version of nginx.

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-476 · NULL Pointer Dereference