PT-2023-3972 · Linux+9 · Linux Kernel+9

Lin Ma · Published 2023-07-21 · Updated 2025-12-01 · CVE-2023-3772

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A flaw exists in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP NET ADMIN privileges to directly dereference a NULL pointer in the xfrm update ae params() function, potentially leading to a kernel crash and denial of service. The vulnerability resides in the net/xfrm/xfrm user.c module.

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

Exploit

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2023:7077

ALT-PU-2023-5044

AZL-33497

BDU:2023-04268

CESA-2023_6901

CESA-2023_7077

CVE-2023-3772

DLA-3623-1

DLA-3710-1

DSA-5492-1

MGASA-2023-0328

MGASA-2023-0331

OESA-2023-1509

OESA-2023-1510

OESA-2023-1511

OESA-2023-1512

OESA-2023-1513

OPENSUSE-SU-2023_3599-1

OPENSUSE-SU-2023_3599-2

OPENSUSE-SU-2023_3600-1

OPENSUSE-SU-2023_3600-2

OPENSUSE-SU-2023_3656-1

OPENSUSE-SU-2023_3680-1

OPENSUSE-SU-2023_3682-1

OPENSUSE-SU-2023_3683-1

OPENSUSE-SU-2023_3683-2

OPENSUSE-SU-2023_3684-1

OPENSUSE-SU-2023_3704-1

OPENSUSE-SU-2023_3704-2

OPENSUSE-SU-2023_3964-1

OPENSUSE-SU-2023_3969-1

OPENSUSE-SU-2023_3971-1

OPENSUSE-SU-2023_3988-1

RHSA-2023:6583

RHSA-2023:6901

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_6901

RHSA-2023_7077

RHSA-2024:0412

RHSA-2024:0575

ROSA-SA-2023-2241

SUSE-SU-2023:3599-1

SUSE-SU-2023:3599-2

SUSE-SU-2023:3600-1

SUSE-SU-2023:3600-2

SUSE-SU-2023:3601-1

SUSE-SU-2023:3656-1

SUSE-SU-2023:3680-1

SUSE-SU-2023:3681-1

SUSE-SU-2023:3682-1

SUSE-SU-2023:3684-1

SUSE-SU-2023:3687-1

SUSE-SU-2023:3705-1

SUSE-SU-2023:3785-1

SUSE-SU-2023:3964-1

SUSE-SU-2023:3969-1

SUSE-SU-2023:3971-1

SUSE-SU-2023:3988-1

SUSE-SU-2023:4028-1

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

USN-6415-1

USN-6439-1

USN-6439-2

USN-6440-1

USN-6440-2

USN-6440-3

USN-6462-1

USN-6462-2

USN-6464-1

USN-6465-1

USN-6465-2

USN-6465-3

USN-6466-1

USN-6516-1

USN-6520-1

Affected Products

Alt Linux

Almalinux

Astra Linux

Centos

Linuxmint

Linux Kernel

Red Hat

Red Os

Suse

Ubuntu

References · 2506

• 🔥 http://openwall.com/lists/oss-security/2023/08/10/1 · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2023:3785-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6520-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-3867 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-34319 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-5197 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-45919 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:3680-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-1206 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6439-2 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:3682-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-3212 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-38430 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2023-0331 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-3772 · Security Note