Use-after-free in Linux kernel - CVE-2023-52483
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90248
CSH Severity: 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-2023-52483
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 mctp_route_lookup() function in net/mctp/route.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/6c52b12159049046483fdb0c411a0a1869c41a67
- https://git.kernel.org/stable/c/1db0724a01b558feb1ecae551782add1951a114a
- https://git.kernel.org/stable/c/2405f64a95a7a094eb24cba9bcfaffd1ea264de4
- https://git.kernel.org/stable/c/5093bbfc10ab6636b32728e35813cbd79feb063c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.137
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.59
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6