Use After Free Vulnerability in crypto: ccree
Summary
GSD-2022-1001581: crypto: ccree - Fix use after free in cc_cipher_exit(). Affects Kernel versions >= 63ee04c8b491ee148489347e7da9fbfd982ca2bb, < 25c358efee5153dfd240d4e0d3169d5bebe9cacd. No fix is published. How to fix ↓
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Background
The crypto: ccree package is a component of the Linux Kernel, which provides cryptographic functionality. It includes the cc_cipher_exit() function, which is responsible for freeing resources used by the ccree cipher. However, a use after free vulnerability has been discovered in this function, which can lead to potential security issues.
Vulnerability Detail
The use after free vulnerability in cc_cipher_exit() occurs when the function attempts to access memory that has already been freed. This can result in unpredictable behavior, including crashes, data corruption, and potential remote code execution. The vulnerability was introduced in version v4.17 of the Linux Kernel and has been fixed in version v5.16.19.
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 to the fixed version of the Linux Kernel as mentioned in the 'how_to_fix' section.
Conclusion
The use after free vulnerability in crypto: ccree's cc_cipher_exit() function can lead to serious security issues, including crashes, data corruption, and potential remote code execution. It is crucial to update the Linux Kernel to version v5.16.19 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The use after free vulnerability in cc_cipher_exit() can lead to crashes, data corruption, and potential remote code execution.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the tool will provide real-time alerts for open-source vulnerabilities.
At the time of this report, there is no known exploit for this vulnerability. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
Yes, this vulnerability has the potential for remote code execution, which means an attacker could exploit it remotely to execute arbitrary code on the affected system.
The primary solution is to update the Linux Kernel to the fixed version. However, if updating is not immediately feasible, additional security measures such as network segmentation and access controls can help mitigate the risk.
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