CVE-2023-52596: linux-libc-dev - Fix out of bounds access for empty sysctl registers
Summary
CVE-2023-52596: In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix out of bounds access for empty sysctl registers When registering tables to the sysctl subsystem there is a check to see if header is a perma... Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The linux-libc-dev package is a development package for the Linux kernel. It provides the necessary header files and libraries for compiling programs that interact with the kernel. The package is an essential component for building and running applications on Linux systems. However, the linux-libc-dev package is vulnerable to an out of bounds access issue in the sysctl subsystem.
Vulnerability Detail
The vulnerability (CVE-2023-52596) in the linux-libc-dev package arises from a flaw in the sysctl subsystem. When registering tables to the sysctl subsystem, there is a check to determine if the header is a permanently empty directory. This check evaluates the first element of the ctl_table, leading to an out of bounds evaluation when registering empty directories. An attacker could exploit this vulnerability to gain unauthorized access or execute arbitrary code on the affected system. The vulnerability has a CVSS score of 7.1, indicating a high severity level.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. However, users can mitigate the risk by ensuring that the linux-libc-dev package is updated to the latest version as soon as it becomes available.
Conclusion
In conclusion, the linux-libc-dev package is vulnerable to an out of bounds access issue in the sysctl subsystem. This vulnerability can be fixed by updating the package to version 6.1.90-1 or later. It is important to promptly apply the update to ensure the security of the affected system. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
The linux-libc-dev package is a development package for the Linux kernel, providing header files and libraries for compiling programs that interact with the kernel.
This vulnerability could allow an attacker to gain unauthorized access or execute arbitrary code on the affected system.
The CVSS score of this vulnerability is 7.1, indicating a high severity level.
To fix this vulnerability, update the linux-libc-dev package to version 6.1.90-1 or later.
There is no specific workaround mentioned for this vulnerability, but updating the linux-libc-dev package to the latest version can help mitigate the risk.
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