Overflow Issue in drm/bridge: anx7625
Summary
GSD-2022-1001543: drm/bridge: anx7625: Fix overflow issue on reading EDID. Affects Kernel versions >= 8bdfc5dae4e3ba4d99dfb430ef43249e5f1b7730, < f0d5d938d51af4eb08d9d8684fd9903425a0a87d. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The drm/bridge: anx7625 is a component in the Linux Kernel that handles the DisplayPort (DP) to MIPI DSI bridge functionality. It allows devices to connect to external displays using the DisplayPort interface. The anx7625 driver is responsible for managing the communication between the device and the connected display. However, a vulnerability has been discovered in the anx7625 driver that can lead to an overflow issue when reading the Extended Display Identification Data (EDID) from the display.
Vulnerability Detail
The vulnerability in the anx7625 driver arises from an overflow issue when reading the EDID from the connected display. This can be exploited by an attacker to cause a buffer overflow, potentially leading to arbitrary code execution or denial of service. The issue was introduced in Linux Kernel version v5.11 and has been fixed in version v5.16.19. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no specific workaround available for this vulnerability. However, users can mitigate the risk by ensuring that their system is not directly exposed to untrusted displays or by disconnecting the DisplayPort connection when not in use.
Conclusion
The overflow issue in the anx7625 driver of the Linux Kernel can lead to potential security risks, including arbitrary code execution or denial of service. It is crucial to update the Linux Kernel to version v5.16.19 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability can vary depending on the attacker's capabilities and the system's configuration. It could potentially lead to arbitrary code execution or denial of service.
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 known vulnerabilities.
Yes, a patch has been released in Linux Kernel version v5.16.19. It is recommended to update to this version or later to fix the vulnerability.
While there is no specific workaround available, you can mitigate the risk by avoiding direct exposure to untrusted displays or disconnecting the DisplayPort connection when not in use.
You can find more information about this vulnerability in the Linux Kernel security advisory or by referring to the provided references link in the vulnerability details.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
