CVE Database›Document archive›CVE-2024-53206

CVE-2024-53206

kernel: tcp: Fix use-after-free of nreq in reqsk_timer_handler().

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · December 27, 2024

Updated · October 29, 2026

Description

A use-after-free vulnerability was found in the reqsk_timer_handler() function in the Linux kernel's TCP component. This issue occurs when an incorrect request object is passed during cleanup after a retry attempt fails, where a timeout leads to denial of service.

Statement

The vulnerability is considered moderate because it requires specific conditions to exploit, such as a failed retry attempt during request migration, leading to a use-after-free, which can cause potential system instability or denial of service.

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-825 · Expired Pointer Dereference