#VU106163 Use-after-free in Linux kernel - CVE-2023-53021
Published: March 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106163
Vulnerability risk: Low
CVSSv4.0: 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-2023-53021
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
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 taprio_reset() and taprio_destroy() functions in net/sched/sch_taprio.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/1200388a0b1c3c6fda48d4d2143db8f7e4ef5348
- https://git.kernel.org/stable/c/3a415d59c1dbec9d772dbfab2d2520d98360caae
- https://git.kernel.org/stable/c/c53acbf2facfdfabdc6e6984a1a38f5d38b606a1
- https://git.kernel.org/stable/c/c60fe70078d6e515f424cb868d07e00411b27fbc
- https://git.kernel.org/stable/c/d3b2d2820a005e43855fa71b80c4a4b194201c60
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.9