#VU115791 NULL pointer dereference in Linux kernel - CVE-2023-53343
Published: September 18, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115791
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53343
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 icmp6_dev() function in net/ipv6/icmp.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/1462e9d9aa52d14665eaca6d89d22c4af44ede04
- https://git.kernel.org/stable/c/2aaa8a15de73874847d62eb595c6683bface80fd
- https://git.kernel.org/stable/c/3fabca5d9cae0140b6aad09a1c6b9aa57089fbb8
- https://git.kernel.org/stable/c/61b4c4659746959056450b92a5d7e6bc1243b31b
- https://git.kernel.org/stable/c/8803c59fde4dd370a627dfbf7183682fa0cabf70
- https://git.kernel.org/stable/c/aa657d319e6c7502a4eb85cc0ee80cc81b8e5724
- https://git.kernel.org/stable/c/d30ddd7ff15df9d91a793ce3f06f0190ff7afacc
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188