Uninitialized Value in caif_seqpkt_sendmsg in Kernel
Summary
GSD-2021-1001245: net: fix uninit-value in caif_seqpkt_sendmsg. Affects Kernel versions >= bece7b2398d073d11b2e352405a3ecd3a1e39c60, < 1582a02fecffcee306663035a295e28e1c4aaaff. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that provides core functionalities and interfaces between hardware and software. It manages system resources, facilitates communication between different components, and ensures the overall stability and security of the system. The caif_seqpkt_sendmsg function in the Kernel is responsible for sending sequenced packets over the CAIF (Common Air Interface) protocol. CAIF is a communication protocol used in mobile devices for transmitting data between different modules. However, a vulnerability has been discovered in the caif_seqpkt_sendmsg function that allows uninitialized values to be used, potentially leading to security issues.
Vulnerability Detail
The vulnerability in the caif_seqpkt_sendmsg function arises from the use of uninitialized values. When certain conditions are met, uninitialized data can be used in the packet transmission process, leading to unpredictable behavior and potential security risks. An attacker could potentially exploit this vulnerability to manipulate the data being transmitted or cause a denial-of-service condition. The vulnerability was introduced in version v2.6.35 of the Kernel and has been fixed in version v5.10.54.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As this vulnerability has been fixed in the latest version of the Linux Kernel, there is no specific workaround available. It is strongly advised to update the Kernel to the latest version to eliminate the risk associated with this vulnerability.
Conclusion
In conclusion, the vulnerability in the caif_seqpkt_sendmsg function of the Kernel allows uninitialized values to be used, potentially leading to security risks. It is crucial to update the Linux Kernel to version v5.10.54 or later to mitigate this vulnerability and ensure the system's security. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability could potentially allow an attacker to manipulate transmitted data or cause a denial-of-service condition.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, there is no known exploit for this vulnerability. However, it is still important to update the Kernel to the latest version to ensure the system is protected against potential future exploits.
As this vulnerability has been fixed in the latest version of the Kernel, updating to that version is the recommended solution. Applying temporary measures may not provide sufficient protection against potential exploits.
You can find more information about the vulnerability and its fix in the Linux Kernel's official repository on GitHub. The specific commits related to this vulnerability are bece7b2398d073d11b2e352405a3ecd3a1e39c60 (introduction) and 1582a02fecffcee306663035a295e28e1c4aaaff (fix).
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