PT-2025-37685 · Linux+5 · Linux Kernel+5

Published 2023-01-01 · Updated 2026-04-14 · CVE-2023-53244

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 null pointer dereference bug exists in the media subsystem, specifically within the tw68 driver during buffer preparation and finalization. A failure in dma alloc coherent can result in an empty buffer, leading to a null pointer dereference when attempting to free or access the buffer. The issue can potentially be triggered from user space.

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

CVE-2023-53244

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Debian

Linux Kernel

Red Os

Suse

Tw68

References · 862

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53244.json · Exploit
• https://git.kernel.org/stable/c/1634b7adcc5bef645b3666fdd564e5952a9e24e0 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:3716-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53244 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-53244 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53244 · Vendor Advisory
• https://git.kernel.org/stable/c/dcf632bca424e6ff8c8eb89c96694e7f05cd29b6 · Patch
• https://git.kernel.org/stable/c/3c67f49a6643d973e83968ea35806c7b5ae68b56 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53244 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-53244 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-53244 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory
• https://git.kernel.org/stable/c/3715c5e9a8f96b6ed0dcbea06da443efccac1ecc · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53244 · Vendor Advisory