Overflow Issue in drm/bridge: anx7625
Summary
GSD-2022-1001857: drm/bridge: anx7625: Fix overflow issue on reading EDID. Affects Kernel versions >= 8bdfc5dae4e3ba4d99dfb430ef43249e5f1b7730, < 64c06df2428bb7bb3d8cf5691416001af42d94dd. No fix is published. How to fix ↓
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Background
The drm/bridge: anx7625 is a component in the Linux Kernel that handles the DisplayPort (DP) to MIPI DSI bridge functionality for the anx7625 chip. This chip is commonly used in various devices to enable video output to displays. The anx7625 driver in the Linux Kernel allows reading of the Extended Display Identification Data (EDID) from connected displays. However, a vulnerability in the driver can lead to an overflow issue when reading the EDID.
Vulnerability Detail
The vulnerability in the drm/bridge: anx7625 driver arises from an overflow issue when reading the EDID from connected displays. This can potentially be exploited by an attacker to execute arbitrary code or cause a denial-of-service (DoS) condition. The overflow issue was introduced in Linux Kernel version v5.11 and has been fixed in version v5.15.33.
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.
Conclusion
The overflow issue in the drm/bridge: anx7625 driver can pose a security risk by allowing arbitrary code execution or causing a denial-of-service condition. It is crucial to update the Linux Kernel to version v5.15.33 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can potentially allow an attacker to execute arbitrary code or cause a denial-of-service (DoS) condition.
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 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 important to apply the necessary updates to mitigate the risk.
To exploit this vulnerability, an attacker would need access to a system with the vulnerable version of the Linux Kernel and the ability to trigger the overflow issue by reading the EDID from a connected display.
There is no information available regarding active exploitation of this vulnerability in the wild. However, it is always recommended to apply security updates promptly to protect against potential exploits.
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