#VU90079 Use-after-free in Linux kernel - CVE-2023-52803
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90079
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-2023-52803
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 rpc_clnt_remove_pipedir() and rpc_setup_pipedir() functions in net/sunrpc/clnt.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/dedf2a0eb9448ae73b270743e6ea9b108189df46
- https://git.kernel.org/stable/c/194454afa6aa9d6ed74f0c57127bc8beb27c20df
- https://git.kernel.org/stable/c/7749fd2dbef72a52b5c9ffdbf877691950ed4680
- https://git.kernel.org/stable/c/1cdb52ffd6600a37bd355d8dce58ecd03e55e618
- https://git.kernel.org/stable/c/cc2e7ebbeb1d0601f7f3c8d93b78fcc03a95e44a
- https://git.kernel.org/stable/c/bfca5fb4e97c46503ddfc582335917b0cc228264
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.318
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.202
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.140
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.280
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.64
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7