Use-after-free in Linux kernel - CVE-2023-26544
Published: May 16, 2023
Vulnerability identifier: #VU76228
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-26544
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the run_unpack() function in fs/ntfs3/run.c, related to a difference between NTFS sector size and media sector size. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
How to mitigate CVE-2023-26544
Install updates from vendor's website.