PT-2025-40745 · Linux+4 · Linux Kernel+4

Published 2023-01-16 · Updated 2026-02-10 · CVE-2023-53582

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.14.0+ #132

Description A stack-out-of-bounds read issue exists in the brcmfmac component of the Linux kernel. This occurs when a CLM version string, which is not null-terminated, is passed as an argument to the strreplace() function within brcmf c preinit dcmds(). The issue is triggered when the buffer is filled with a CLM version string by memcpy() in brcmf fil iovar data get(). This can lead to a system crash. The issue was discovered through a modified version of syzkaller.

Recommendations Update to a version after 5.14.0+ #132.

Exploit

Fix

Out of bounds Read

NULL Pointer Dereference

Weakness Enumeration

CWE-125

CWE-476

Related Identifiers

ALSA-2025_16880

BDU:2026-01525

CESA-2023_7077

CVE-2023-53582

OESA-2025-2659

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

SUSE-SU-2025:4111-1

SUSE-SU-2025:4139-1

SUSE-SU-2025:4149-1

SUSE-SU-2025:4189-1

SUSE-SU-2025:4320-1

Affected Products

Centos

Linux Kernel

Red Hat

Suse

Brcmfmac

References · 652

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53582.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-50349 · Security Note
• https://git.kernel.org/stable/c/423a1297ea72bbddf64dbb0957f2879c0f2aa5d0 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4149-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53582 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-40044 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4111-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53199 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4139-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53582 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39973 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50489 · Security Note
• https://git.kernel.org/stable/c/a0f0ce1c8ab9fe90618dc394e3d1568b5a9ac154 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53446 · Security Note
• https://ubuntu.com/security/CVE-2023-53582 · Vendor Advisory