#VU103584 NULL pointer dereference in Linux kernel - CVE-2025-21670
Published: February 4, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU103584
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21670
CWE-ID: CWE-476
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 perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the vsock_bpf_recvmsg() function in net/vmw_vsock/vsock_bpf.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/58e586c30d0b6f5dc0174a41026f2b0a48c9aab6
- https://git.kernel.org/stable/c/6771e1279dadf1d92a72e1465134257d9e6f2459
- https://git.kernel.org/stable/c/f6abafcd32f9cfc4b1a2f820ecea70773e26d423
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.74