#VU93425 Buffer overflow in Linux kernel - CVE-2023-52775
Published: June 27, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93425
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-52775
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit 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 a boundary error within the smcr_clnt_conf_first_link() function in net/smc/af_smc.c when handling SMC DECLINE messages. A remote attacker can send specially crafted SMC DECLINE message to the system, trigger memory corruption and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://git.kernel.org/stable/c/5ada292b5c504720a0acef8cae9acc62a694d19c
- https://git.kernel.org/stable/c/90072af9efe8c7bd7d086709014ddd44cebd5e7c
- https://git.kernel.org/stable/c/94a0ae698b4d5d5bb598e23228002a1491c50add
- https://git.kernel.org/stable/c/7234d2b5dffa5af77fd4e0deaebab509e130c6b1
- https://git.kernel.org/stable/c/e6d71b437abc2f249e3b6a1ae1a7228e09c6e563
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.203
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.141
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.65
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7