#VU108246 Use-after-free in Linux kernel - CVE-2025-23142
Published: May 2, 2025 / Updated: May 10, 2025
Vulnerability identifier: #VU108246
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-2025-23142
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 sctp_transport_free() function in net/sctp/transport.c, within the sctp_writeable(), sctp_sendmsg_to_asoc(), sctp_sock_rfree() and sctp_wait_for_sndbuf() functions in net/sctp/socket.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/0f7df4899299ce4662e5f95badb9dbc57cc37fa5
- https://git.kernel.org/stable/c/2e5068b7e0ae0a54f6cfd03a2f80977da657f1ee
- https://git.kernel.org/stable/c/3257386be6a7eb8a8bfc9cbfb746df4eb4fc70e8
- https://git.kernel.org/stable/c/547762250220325d350d0917a7231480e0f4142b
- https://git.kernel.org/stable/c/5bc83bdf5f5b8010d1ca5a4555537e62413ab4e2
- https://git.kernel.org/stable/c/7a63f4fb0efb4e69efd990cbb740a848679ec4b0
- https://git.kernel.org/stable/c/9e7c37fadb3be1fc33073fcf10aa96d166caa697
- https://git.kernel.org/stable/c/c6fefcb71d246baaf3bacdad1af7ff50ebcfe652
- https://git.kernel.org/stable/c/f1a69a940de58b16e8249dff26f74c8cc59b32be
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.237
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.181
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.293
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.135
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.88