PT-2025-37654 · Linux+6 · Linux Kernel+6

Published 2023-03-13 · Updated 2026-04-14 · CVE-2023-53213

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A slab-out-of-bounds read vulnerability exists in the brcmfmac module within the Linux kernel. This issue occurs in the brcmf get assoc ies() function when handling data from a USB device, specifically when the req len value is larger than the defined buffer size WL EXTRA BUF MAX during a kmemdup() operation. The vulnerability was discovered through a modified version of syzkaller.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Out of bounds Read

Buffer Overflow

Weakness Enumeration

CWE-125

CWE-119

Related Identifiers

ALSA-2025_16880

BDU:2026-02261

CESA-2023_7077

CVE-2023-53213

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

RHSA-2025:21051

RHSA-2025:21083

RHSA-2025:21091

RHSA-2025:21128

RHSA-2025:21136

SUSE-SU-2025:03613-1

SUSE-SU-2025:03614-1

SUSE-SU-2025:03615-1

SUSE-SU-2025:03626-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Red Os

Suse

Brcmfmac

References · 1017

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53213.json · Exploit
• https://git.kernel.org/stable/c/ac5305e5d227b9af3aae25fa83380d3ff0225b73 · Patch
• https://git.kernel.org/stable/c/39f9bd880abac6068bedb24a4e16e7bd26bf92da · Patch
• https://osv.dev/vulnerability/BELL-CVE-2023-53213 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03613-1 · Vendor Advisory
• https://git.kernel.org/stable/c/e29661611e6e71027159a3140e818ef3b99f32dd · Patch
• https://cve.org/CVERecord?id=CVE-2023-53213 · Security Note
• https://ubuntu.com/security/CVE-2023-53213 · Vendor Advisory
• https://git.kernel.org/stable/c/549825602e3e6449927ca1ea1a08fd89868439df · Patch
• https://bdu.fstec.ru/vul/2026-02261 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53213 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://git.kernel.org/stable/c/228186629ea970cc78b7d7d5f593f2d32fddf9f6 · Patch
• https://git.kernel.org/stable/c/425eea395f1f5ae349fb55f7fe51d833a5324bfe · Patch
• https://git.kernel.org/stable/c/21bee3e649d87f78fe8aef6ae02edd3d6f310fd0 · Patch