PT-2025-37520 · Linux+4 · Linux Kernel+4

Published 2023-07-31 · Updated 2025-12-01 · CVE-2023-53147

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 (affected versions not specified)

Description The Linux kernel contains a vulnerability in the xfrm subsystem. Specifically, a NULL pointer dereference can occur in the xfrm update ae params function when using xfrm new ae. This is due to a missing NULL check, potentially allowing a malicious user to crash the kernel.

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

Exploit

Improper Resource Release

NULL Pointer Dereference

Weakness Enumeration

CWE-404

CWE-476

Related Identifiers

ALSA-2025_16880

BDU:2026-05986

CESA-2023_7077

CVE-2023-53147

RHSA-2023:7077

RHSA-2023_7077

RHSA-2024:0575

SUSE-SU-2025:03600-1

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-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:3761-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

SUSE-SU-2025:4315-1

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Suse

References · 2083

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53147.json · Exploit
• https://git.kernel.org/stable/c/ed1cba039309c80b49719fcff3e3d7cdddb73d96 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53147 · Security Note
• https://git.kernel.org/stable/c/53df4be4f5221e90dc7aa9ce745a9a21bb7024f4 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:20898-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53147 · Vendor Advisory
• https://git.kernel.org/stable/c/8046beb890ebc83c5820188c650073e1c6066e67 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://git.kernel.org/stable/c/44f69c96f8a147413c23c68cda4d6fb5e23137cd · Patch
• https://git.kernel.org/stable/c/075448a2eb753f813fe873cfa52853e9fef8eedb · Patch
• https://git.kernel.org/stable/c/bd30aa9c7febb6e709670cd5154194189ca3b7b5 · Patch
• https://git.kernel.org/stable/c/87b655f4936b6fc01f3658aa88a22c923b379ebd · Patch
• https://bdu.fstec.ru/vul/2026-05986 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53147 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53147 · Security Note