#VU106192 NULL pointer dereference in Linux kernel - CVE-2023-52993
Published: March 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106192
Vulnerability risk: Low
CVSSv4.0: 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-2023-52993
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the init_ISA_irqs() function in arch/x86/kernel/irqinit.c, within the make_8259A_irq() function in arch/x86/kernel/i8259.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/0b08201158f177aab469e356b4d6af24fdd118df
- https://git.kernel.org/stable/c/137f1b47da5f58805da42c1b7811e28c1e353f39
- https://git.kernel.org/stable/c/496975d1a2937f4baadf3d985991b13fc4fc4f27
- https://git.kernel.org/stable/c/5fa55950729d0762a787451dc52862c3f850f859
- https://git.kernel.org/stable/c/744fe9be9665227335539b7a77ece8d9ff62b6c0
- https://git.kernel.org/stable/c/8770cd9d7c14aa99c255a0d08186f0be953e1638
- https://git.kernel.org/stable/c/e284c273dbb4c1ed68d4204bff94d0b10e4a90f5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.166