Vulnerability in Kernel Package: drm/plane
Summary
GSD-2022-1003892: drm/plane: Move range check for format_count earlier. Affects Kernel versions < 4ab7e453a3ee88c274cf97bee9487ab92a66d313. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functionality. It includes various modules and drivers that enable communication between hardware and software components. The drm/plane module specifically handles the configuration and control of display planes in the graphics subsystem. Display planes are responsible for rendering and compositing graphical content on the screen. This vulnerability in the drm/plane module poses a potential security risk to the system.
Vulnerability Detail
The vulnerability in the drm/plane module arises from a range check for the 'format_count' parameter being performed at a later stage than necessary. This delay in the range check allows an attacker to manipulate the 'format_count' value to trigger a buffer overflow or other memory-related issues. Exploiting this vulnerability could lead to arbitrary code execution, privilege escalation, or denial of service attacks. The vulnerability has been fixed in Linux Kernel version v4.19.247 by commit 4ab7e453a3ee88c274cf97bee9487ab92a66d313.
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 ensuring they are running an updated version of the Linux Kernel. Additionally, implementing proper security measures such as restricting access to vulnerable systems and applying other relevant security patches can help reduce the attack surface.
Conclusion
The vulnerability in the Kernel package's drm/plane module poses a potential security risk to Linux systems. It is crucial to update to the fixed version or apply the necessary patch to mitigate the risk. Regularly checking for updates and following best security practices can help ensure the overall security of the system. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
This vulnerability can potentially allow an attacker to execute arbitrary code, escalate privileges, or cause denial of service on affected systems.
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 to the playground and it will provide real-time alerts for open-source vulnerabilities.
Yes, the vulnerability has been fixed in Linux Kernel version v4.19.247 by commit 4ab7e453a3ee88c274cf97bee9487ab92a66d313. It is recommended to update to this version or later to mitigate the risk.
At the time of this report, there are no known public exploits targeting this vulnerability. However, it is important to apply the necessary updates and security measures to protect against potential attacks.
You can refer to the vulnerability details in the GSD Database at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003892.json for more information and technical details.
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