Buffer overflow in Linux kernel - CVE-2025-21735
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105056
CSH Severity: Low
CVSS v4.0: 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-2025-21735
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the nci_hci_create_pipe() function in net/nfc/nci/hci.c. A local user can escalate privileges on the system.
How to mitigate CVE-2025-21735
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/110b43ef05342d5a11284cc8b21582b698b4ef1c
- https://git.kernel.org/stable/c/172cdfc3a5ea20289c58fb73dadc6fd4a8784a4e
- https://git.kernel.org/stable/c/2ae4bade5a64d126bd18eb66bd419005c5550218
- https://git.kernel.org/stable/c/59c7ed20217c0939862fbf8145bc49d5b3a13f4f
- https://git.kernel.org/stable/c/d5a461c315e5ff92657f84d8ba50caa5abf5c22a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.129