SB20240620234 - Buffer overflow in Linux kernel boot compressed
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240620234
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2023-52733)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the decompress_kernel() function in arch/s390/boot/compressed/decompressor.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/16409f7d9ca5bb8220e1049ea9aae0d3c94d2dfb
- https://git.kernel.org/stable/c/55dbd6f4ea954751340f4f73d5dcd7c8f12208b2
- https://git.kernel.org/stable/c/9ed522143f959630f8b7782ddc212900d8f609a9
- https://git.kernel.org/stable/c/f1eb22d0ff064ad458b3b1a1eaa84ac3996206c2
- https://git.kernel.org/stable/c/7ab41c2c08a32132ba8c14624910e2fe8ce4ba4b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.169
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.95
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.232
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2