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CVE-2023-52885

kernel: SUNRPC: Fix UAF in svc_tcp_listen_data_ready()

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · July 14, 2024

Updated · September 28, 2026

Description

A vulnerability was found in the Linux kernel's SUNRPC implementation in the svc_tcp_listen_data_ready() function, where the use-after-free vulnerability occurs when a listener socket is freed while a child socket retains a reference to it, leading to potential access of invalid memory.

Statement

This vulnerability is rated as a moderate severity due to its potential to disrupt service through crashes where the use-after-free allows for exploitation under specific conditions.

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

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference