#VU75205 Use-after-free in Linux kernel - CVE-2023-1838

Vulnerability identifier: #VU75205

Vulnerability risk: Low

CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2023-1838

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
Linux kernel

Software vendor:
Linux Foundation

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the vhost_net_set_backend() function in drivers/vhost/net.c. A local user can trigger a use-after-free error and crash the kernel.

Install updates from vendor's website.

• https://lore.kernel.org/netdev/20220516084213.26854-1-jasowang@redhat.com/T/