Null Pointer Dereference in video: fbdev: smscufx
Summary
GSD-2022-1001573: video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe(). Affects Kernel versions >= 3c8a63e22a0802fd56380f6ab305b419f18eb6f5, < d396c651e2b508b6179bb678cc029f3becbf5170. No fix is published. How to fix ↓
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Background
The video: fbdev: smscufx package is a component of the Linux Kernel, which is responsible for handling video frame buffer devices. It provides the necessary functionality for managing video output on systems using the Simple Media Interface (SMI) protocol. The smscufx driver specifically handles USB video frame buffer devices. This vulnerability affects versions of the Linux Kernel from v3.2 to v5.16.18.
Vulnerability Detail
The null pointer dereference vulnerability in the ufx_usb_probe() function of the video: fbdev: smscufx package allows an attacker to trigger a crash or potentially execute arbitrary code by sending specially crafted USB packets to a vulnerable system. This vulnerability was introduced in version v3.2 of the Linux Kernel and was 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.
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Workaround
No workaround has been provided for this vulnerability.
Conclusion
The null pointer dereference vulnerability in the video: fbdev: smscufx package of the Linux Kernel can potentially lead to system crashes or arbitrary code execution. It is recommended to update the Linux Kernel to version v5.16.19 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is currently unknown. It could potentially lead to system crashes or allow an attacker to execute arbitrary code.
You can use the Vulert Playground (https://vulert.com/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.
There are currently no known exploits for this vulnerability.
No CVE has been assigned to this vulnerability at the time of this report.
You can find more information about this vulnerability in the Open Source Vulnerability Database (OSVDB) entry: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001573.json
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