PT-2025-54077 · Linux · Linux Kernel

CVE-2023-54248 · Published 2023-03-27 · Updated 2026-01-07

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:A/AC:L/Au:S/C:N/I:N/A:C

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

Description A flaw exists in the Linux kernel's fs/ntfs3 module related to handling the return value of the kmemdup function. The kmemdup function may return a NULL pointer, and a check for this condition was missing, potentially leading to a NULL pointer dereference.

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

BDU:2026-04200

CVE-2023-54248

Affected Products

Linux Kernel

References · 23

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54248.json · Exploit
• https://bdu.fstec.ru/vul/2026-04200 · Security Note
• https://cve.org/CVERecord?id=CVE-2023-54248 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54248 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54248 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54248 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54248 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54248 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54248 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-54248 · Vendor Advisory
• https://git.kernel.org/stable/c/9f36704a58adade3b0216f8a3fa5503db4517208 · Note
• https://docs.bell-sw.com/security/cves/CVE-2023-54248 · Note
• https://git.kernel.org/linus/e6c3cef24cb0d045f99d5cb039b344874e3cfd74 · Note
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.15 · Note
• https://git.kernel.org/stable/c/e6c3cef24cb0d045f99d5cb039b344874e3cfd74 · Note