Double Free Race Vulnerability in cifs Package
Summary
GSD-2022-1000786: cifs: fix double free race when mount fails in cifs_get_root(). Affects Kernel versions < 546d60859ecf13380fcabcbeace53a5971493a2b. 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), allowing Linux systems to access files and resources on remote Windows servers. The package enables file sharing, network browsing, and authentication between Linux and Windows systems. However, a vulnerability has been discovered in the cifs package that can lead to a double free race condition when a mount operation fails in the cifs_get_root() function.
Vulnerability Detail
The double free race vulnerability in the cifs package occurs when a mount operation fails in the cifs_get_root() function. This vulnerability can be exploited by an attacker to cause a double free condition, potentially leading to memory corruption or a system crash. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in the Linux Kernel version v5.15.27 by commit 546d60859ecf13380fcabcbeace53a5971493a2b.
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. The recommended approach is to apply the fix by updating the Linux Kernel to the patched version.
Conclusion
The double free race vulnerability in the cifs package can potentially lead to memory corruption or system crashes. It is crucial to update the Linux Kernel to version v5.15.27 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The cifs package is a component of the Linux Kernel ecosystem that provides support for the Common Internet File System (CIFS), enabling Linux systems to access files and resources on remote Windows servers.
The impact of this vulnerability is not yet proven. However, it could potentially lead to memory corruption or system crashes if exploited by an attacker.
Yes, this vulnerability has been fixed in the Linux Kernel version v5.15.27 by commit 546d60859ecf13380fcabcbeace53a5971493a2b.
To fix this vulnerability, update the Linux Kernel to version v5.15.27 or later by pulling the latest updates from the official Linux Kernel repository.
No specific workarounds are mentioned for this vulnerability. It is recommended to apply the fix by updating the Linux Kernel.
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