Improper locking in Linux kernel - CVE-2023-53107

Vulnerability identifier: #VU108478

CSH Severity: Low

CVSS v4: 6.8 [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]

CVE-ID: CVE-2023-53107

CWE-ID: CWE-667

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to improper locking within the veth_convert_skb_to_xdp_buff() function in drivers/net/veth.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel (Red Hat package)
kernel-rt (Red Hat package)
Red Hat OpenShift Container Platform

Install update from vendor's website.

Linux kernel - addressed in versions 6.1.21, 6.2.8, 6.3
Red Hat OpenShift Container Platform - update to 4.12.77
kernel (Red Hat package) - update to 5.14.0-284.118.1.el9_2
kernel-rt (Red Hat package) - update to 5.14.0-284.118.1.rt14.403.el9_2

• https://git.kernel.org/stable/c/6e755b56896df48b0fae0db275e148f8d8aa7d6f
• https://git.kernel.org/stable/c/717d20710596b5b26595ede454d1105fa176f4a4
• https://git.kernel.org/stable/c/7c10131803e45269ddc6c817f19ed649110f3cae
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.21
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3

• Improper locking in Linux kernel net driver
• Red Hat Enterprise Linux 9 update for kernel
• Red Hat Enterprise Linux 9 update for kernel-rt
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.12