Out-of-bounds read in Linux kernel - CVE-2023-52596
Published: June 4, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91101
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-2023-52596
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the register_sysctl_mount_point(), insert_header() and get_links() functions in fs/proc/proc_sysctl.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
IBM Qradar SIEM
IBM Security Guardium
IBM Qradar SIEM
IBM Security Guardium
How to mitigate CVE-2023-52596
Install update from vendor's website.
Linux kernel - addressed in versions 6.6.16, 6.7.4, 6.8
IBM Qradar SIEM - update to 7.5.0 Update Pack 10 IF01
IBM Security Guardium - update to 12.0p30
IBM Qradar SIEM - update to 7.5.0 Update Pack 10 IF01
IBM Security Guardium - update to 12.0p30
External References
- https://git.kernel.org/stable/c/15893975e9e382f8294ea8d926f08dc2d8d39ede
- https://git.kernel.org/stable/c/2ae7081bc10123b187e36a4f3a8e53768de31489
- https://git.kernel.org/stable/c/315552310c7de92baea4e570967066569937a843
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8