#VU66476 Input validation error in Linux kernel - CVE-2022-36946
Published: August 13, 2022 / Updated: August 14, 2022
Vulnerability identifier: #VU66476
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2022-36946
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the nfqnl_mangle() function in net/netfilter/nfnetlink_queue.c in the Linux kernel when processing IPv6 packets. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.