Double Free Race Vulnerability in cifs Package
Summary
GSD-2022-1000925: cifs: fix double free race when mount fails in cifs_get_root(). Affects Kernel versions < 147a0e71ccf96df9fc8c2ac500829d8e423ef02c. No fix is published. How to fix ↓
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Background
The cifs package is a component of the Linux Kernel ecosystem. It provides support for the Common Internet File System (CIFS) protocol, allowing Linux systems to access files and resources on remote Windows servers. The cifs package is responsible for mounting and managing CIFS file systems. It is a critical component for Linux systems that require interoperability with Windows networks.
Vulnerability Detail
The identified vulnerability, known as GSD-2022-1000925, is a double free race condition that occurs when a mount operation fails in the cifs_get_root() function. This vulnerability can be exploited by an attacker to cause a denial-of-service (DoS) condition or potentially execute arbitrary code. The double free race condition arises when multiple threads attempt to free the same memory location concurrently, leading to memory corruption and unpredictable behavior. The impact of this vulnerability depends on the context in which it is exploited and the privileges of the attacker.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability. Users are advised to apply the recommended fix by updating the Linux Kernel to the patched version.
Conclusion
The double free race vulnerability in the cifs package can have serious security implications, potentially leading to a denial-of-service condition or arbitrary code execution. It is crucial to update the Linux Kernel to the patched version to mitigate this vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
The cifs package is a component of the Linux Kernel ecosystem that enables Linux systems to access files and resources on remote Windows servers using the CIFS protocol.
A double free race condition occurs when multiple threads attempt to free the same memory location concurrently. This can lead to memory corruption and unpredictable behavior.
This vulnerability can result in a denial-of-service (DoS) condition or potentially allow an attacker to execute arbitrary code, depending on the context and attacker's privileges.
To fix this vulnerability, update the Linux Kernel to version v4.14.270 or later, which includes the necessary patch. Regularly updating the Kernel is recommended for security and bug fixes.
No specific workaround has been provided. It is advised to apply the recommended fix by updating the Linux Kernel.
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