CVE-2024-52811

ngtcp2: Acks not validated before logged to qlog leads to buffer overflow in ngtcp2

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Severity

Important

Red Hat Product Security

8.2

CVSS 3.1

Review impact separately from score.

Published · November 26, 2024

Updated · June 30, 2026

Description

A flaw was found in the ngtcp2 project. In affected versions, acks are not validated before being written to the qlog, leading to a buffer overflow.

Statement

Red Hat does not ship an affected version of ngtcp2. Additionally, this vulnerability impacts systems where qlog is enabled. By default, qlog is disabled.

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 · 8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CWE-670 · Always-Incorrect Control Flow Implementation