CVE-2024-35861: Vulnerability in linux-libc-dev package - Potential UAF in cifs_signal_cifsd_for_reconnect()
Summary
CVE-2024-35861: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in cifs_signal_cifsd_for_reconnect() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF. 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 that provides the necessary header files and libraries for compiling programs that use the Linux kernel interfaces. It is an essential component for building and linking applications on Linux systems. The package is widely used by developers and is included in various Linux distributions. However, the linux-libc-dev package is vulnerable to a potential Use-After-Free (UAF) vulnerability in the cifs_signal_cifsd_for_reconnect() function.
Vulnerability Detail
The vulnerability in the linux-libc-dev package arises from a potential Use-After-Free (UAF) issue in the cifs_signal_cifsd_for_reconnect() function. This vulnerability can be exploited by an attacker to cause a denial-of-service (DoS) condition or potentially execute arbitrary code with kernel privileges. The vulnerability occurs when sessions that are being torn down are not properly skipped, leading to a UAF condition. An attacker can exploit this vulnerability by sending specially crafted requests to the affected system, potentially resulting in the compromise of the system or disruption of services.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability at the moment. It is highly recommended to apply the official patch or update the linux-libc-dev package to the latest version as soon as possible.
Conclusion
The linux-libc-dev package is vulnerable to a potential Use-After-Free (UAF) vulnerability in the cifs_signal_cifsd_for_reconnect() function. This vulnerability can be exploited to cause a denial-of-service (DoS) condition or potentially execute arbitrary code with kernel privileges. It is crucial to update the linux-libc-dev package to version 6.1.90-1 or later to mitigate this vulnerability. If you need further assistance or support in addressing this vulnerability, please contact DevNack.com.
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FAQ
The linux-libc-dev package is a development package that provides the necessary header files and libraries for compiling programs that use the Linux kernel interfaces.
A Use-After-Free (UAF) vulnerability is a type of memory corruption issue where a program continues to use a memory region after it has been freed, leading to potential security vulnerabilities.
The potential consequences of this vulnerability include denial-of-service (DoS) conditions and the possibility of arbitrary code execution with kernel privileges.
To update the linux-libc-dev package, you can use the package manager of your Linux distribution. For example, on Debian-based systems, you can use the 'apt-get' command to update the package.
Currently, there is no known workaround for this vulnerability. It is recommended to apply the official patch or update the linux-libc-dev package to the latest version.
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