Stale File Descriptors Vulnerability in drm/vmwgfx
Summary
GSD-2022-1000180: drm/vmwgfx: Fix stale file descriptors on failed usercopy. Affects Kernel versions >= c906965dee22d5e95d0651759ba107b420212a9f, < ae2b20f27732fe92055d9e7b350abc5cdf3e2414. No fix is published. How to fix ↓
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Background
The drm/vmwgfx package is a component of the Linux Kernel that provides support for VMware virtual graphics devices. It allows virtual machines to utilize accelerated 3D graphics capabilities. The package is responsible for managing the communication between the virtual machine and the host system's graphics hardware. However, a vulnerability has been discovered in the package that could lead to the presence of stale file descriptors on failed usercopy operations.
Vulnerability Detail
The vulnerability in drm/vmwgfx arises from a failure to properly handle usercopy operations. When a usercopy operation fails, the package does not correctly clean up the associated file descriptors, resulting in stale file descriptors being left behind. An attacker could potentially exploit this vulnerability to gain unauthorized access to sensitive information or execute arbitrary code within the affected system. The impact and attack plausibility of this vulnerability have not yet been proven.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
The stale file descriptors vulnerability in drm/vmwgfx can potentially lead to unauthorized access or arbitrary code execution. It is crucial to update the Linux Kernel to the latest version (v5.10.95) 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. While it has the potential to allow unauthorized access to sensitive information or arbitrary code execution, the actual impact and attack plausibility have not been proven.
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 the Vulert Playground will analyze it for any open-source vulnerabilities, including this one.
Yes, a patch has been released in the Linux Kernel version v5.10.95. It is recommended to update your Linux Kernel to the latest version to fix the vulnerability.
No specific temporary measures have been provided for this vulnerability. It is recommended to update the Linux Kernel to the latest version as soon as possible.
You can find more information about this vulnerability in the GSD-2022-1000180 entry of the GSD Database maintained by the Cloud Security Alliance. The entry can be accessed at: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000180.json
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