Race condition in Linux kernel - CVE-2023-42756
Published: October 8, 2023
Vulnerability identifier: #VU81690
CSH Severity: Low
CVSS v4.0: 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-2023-42756
CWE-ID: CWE-362
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 perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition in the Netfilter subsystem. A local user can exploit the race between IPSET_CMD_ADD and IPSET_CMD_SWAP and gain crash the kernel.
How to mitigate CVE-2023-42756
Install updates from vendor's website.