Double Free Vulnerability in cifs Package
Summary
GSD-2022-1002844: cifs: fix potential double free during failed mount. Affects Kernel versions < ee71f8f1cd3c8c4a251fd3e8abc89215ae3457cb. 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 package is responsible for handling the mounting and unmounting of CIFS shares. However, a vulnerability has been discovered in the package that could lead to a potential double free during a failed mount operation.
Vulnerability Detail
The vulnerability in the cifs package arises when a mount operation fails. In such cases, there is a possibility of a double free, which occurs when the same memory location is freed twice. This can lead to memory corruption and potentially allow an attacker to execute arbitrary code or cause a denial-of-service (DoS) condition. The impact and attack plausibility of this vulnerability have not been proven yet.
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 updating their Linux Kernel to the fixed version as mentioned in the 'how_to_fix' section.
Conclusion
The cifs package in the Linux Kernel is vulnerable to a double free issue during a failed mount operation. To mitigate the risk, it is crucial to update the Linux Kernel to version v5.18.3 or later. For further support on vulnerability remediation, you can reach out to 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) protocol.
The impact of this vulnerability is not yet proven, but it could potentially allow an attacker to execute arbitrary code or cause a denial-of-service (DoS) condition.
To fix this vulnerability, users should update their Linux Kernel to version v5.18.3 or later.
There is no specific workaround mentioned for this vulnerability. Updating the Linux Kernel to the fixed version is the recommended solution.
For more details about this vulnerability, you can refer to the source link provided in the 'affected' section of the vulnerability details.
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