#VU115626 Out-of-bounds write in Linux kernel - CVE-2023-53265
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115626
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-2023-53265
CWE-ID: CWE-787
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 execute arbitrary code.
The vulnerability exists due to an out-of-bounds write within the io_init() function in drivers/mtd/ubi/build.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/1b42b1a36fc946f0d7088425b90d491b4257ca3e
- https://git.kernel.org/stable/c/61aeba0e4b4124cfe3c5427feaf29c626dfa89e5
- https://git.kernel.org/stable/c/61e04db3bec87f7dd10074296deb7d083e2ccade
- https://git.kernel.org/stable/c/701bb3ed5a88a73ebbe1266895bdeff065226dca
- https://git.kernel.org/stable/c/771e207a839a29ba943e89f473b0fecd16089e2e
- https://git.kernel.org/stable/c/846bfba34175c23b13cc2023c2d67b96e8c14c43
- https://git.kernel.org/stable/c/e1b73fe4f4c6bb80755eb4bf4b867a8fd8b1a7fe
- https://git.kernel.org/stable/c/f7adb740f97b6fa84e658892dcb08e37a31a4e77
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.235