PT-2024-14690 · Linux+3 · Linux Kernel+3

Published 2023-12-08 · Updated 2025-03-28 · CVE-2023-52681

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 the efivarfs component in the Linux kernel, where a s fs info struct is allocated on fs context creation but not properly freed when the superblock is unmounted. This can lead to a memory leak. The estimated number of potentially affected devices and details about real-world incidents are not provided.

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2025-14301

CVE-2023-52681

SUSE-SU-2024:2135-1

SUSE-SU-2024:2203-1

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

Linuxmint

Linux Kernel

Suse

Ubuntu

References · 2958

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52681.json · Exploit
• https://ubuntu.com/security/CVE-2023-52626 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52589 · Vendor Advisory
• https://git.kernel.org/stable/c/48be1364dd387e375e1274b76af986cb8747be2c · Patch
• https://ubuntu.com/security/CVE-2024-26615 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26620 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52490 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52612 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52690 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-52681 · 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-2023-52677 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-52681 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52497 · Vendor Advisory