Vulnerability in Kernel: ftrace Blind IP Address Reading
Summary
GSD-2021-1000950: ftrace: Do not blindly read the ip address in ftrace_bug(). Affects Kernel versions >= 05736a427f7e16be948ccbf39782bd3a6ae16b14, < 97524384762c1fb9b3ded931498dd2047bd0de81. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionalities and acts as an interface between hardware and software. It manages system resources, facilitates communication between processes, and ensures security. The ftrace feature in the Kernel allows for tracing and debugging of function calls within the kernel code. However, a vulnerability has been identified in the ftrace module that could potentially lead to security breaches.
Vulnerability Detail
The ftrace_bug() function in the ftrace module blindly reads the IP address, which can be manipulated by an attacker. This vulnerability could allow an attacker to execute arbitrary code or perform privilege escalation attacks. The issue was introduced in version v2.6.28 of the Linux Kernel and has been fixed in version v5.10.44. It is important to note that the impact and attack plausibility of this vulnerability have not been proven.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the fix by updating the Linux Kernel to the recommended version.
Conclusion
The ftrace vulnerability in the Kernel could potentially lead to security breaches, allowing attackers to execute arbitrary code or escalate privileges. It is crucial to update the Linux Kernel to version v5.10.44 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel is a critical component of the Linux operating system that provides core functionalities and acts as an interface between hardware and software.
ftrace is a feature in the Kernel that allows for tracing and debugging of function calls within the kernel code.
This vulnerability could allow an attacker to execute arbitrary code or perform privilege escalation attacks.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.44 or later.
There is no known workaround for this vulnerability. It is essential to apply the fix by updating the Linux Kernel.
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