PT-2024-8473 · Linux+9 · Linux Kernel+9

Kunwu Chan · Published 2023-12-13 · Updated 2025-09-29 · CVE-2023-52686

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 The issue is related to a null pointer dereference in the opal event init() function. This can lead to a denial of service. The kasprintf() function returns a pointer to dynamically allocated memory, which can be NULL upon failure.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2024:4211

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

BDU:2024-10033

CESA-2024_4211

CVE-2023-52686

DLA-3841-1

INFSA-2024_4211

INFSA-2024_9315

OESA-2024-1705

OESA-2024-1706

OESA-2024-1707

OPENSUSE-SU-2024_2185-1

OPENSUSE-SU-2024_2189-1

OPENSUSE-SU-2024_2948-1

RHSA-2024:4211

RHSA-2024:9315

RHSA-2024_4211

RHSA-2024_9315

RLSA-2024:4211

RXSA-2024:4211

SUSE-SU-2024:1979-1

SUSE-SU-2024:1983-1

SUSE-SU-2024:2008-1

SUSE-SU-2024:2010-1

SUSE-SU-2024:2011-1

SUSE-SU-2024:2019-1

SUSE-SU-2024:2135-1

SUSE-SU-2024:2183-1

SUSE-SU-2024:2184-1

SUSE-SU-2024:2185-1

SUSE-SU-2024:2189-1

SUSE-SU-2024:2190-1

SUSE-SU-2024:2203-1

SUSE-SU-2024:2923-1

SUSE-SU-2024:2948-1

SUSE-SU-2024:2973-1

SUSE-SU-2025:20008-1

SUSE-SU-2025:20028-1

SUSE-SU-2025:20166-1

SUSE-SU-2025:20249-1

USN-6818-1

USN-6818-2

USN-6818-3

USN-6818-4

USN-6819-1

USN-6819-2

USN-6819-3

USN-6819-4

Affected Products

Almalinux

Astra Linux

Centos

Linuxmint

Linux Kernel

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

References · 4181

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52686.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2023-52686 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1983-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52626 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52589 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26615 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-52875 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52693 · Security Note
• https://ubuntu.com/security/CVE-2023-52609 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52598 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52497 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52607 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6819-4 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47558 · Security Note
• https://ubuntu.com/security/CVE-2024-26636 · Vendor Advisory