Vulnerability in Kernel package: ata: sata_dwc_460ex: Fix crash due to OOB write
Summary
GSD-2022-1002176: ata: sata_dwc_460ex: Fix crash due to OOB write. Affects Kernel versions >= 28361c403683c2b00d4f5e76045f3ccd299bf99d, < 55e1465ba79562a191708a40eeae3f8082a209e3. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system. It provides the core functionality and interfaces for the system's hardware, software, and user applications. The sata_dwc_460ex driver is responsible for managing SATA controllers based on the DesignWare Cores (DWC) 460EX IP. These controllers are commonly used in embedded systems and provide connectivity for SATA storage devices. However, a vulnerability has been discovered in the sata_dwc_460ex driver that can lead to a system crash due to an out-of-bounds write.
Vulnerability Detail
The vulnerability in the sata_dwc_460ex driver allows an attacker to trigger an out-of-bounds write, leading to a system crash. This can be exploited by sending specially crafted input to the driver, causing it to write data beyond the bounds of a buffer. The impact of this vulnerability can range from a denial-of-service condition to potential code execution if the attacker can control the data written. The vulnerability was introduced in version v4.18 of the Linux Kernel and has been fixed in version v5.4.189.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If updating the Kernel package is not immediately feasible, a possible workaround is to disable the sata_dwc_460ex driver if it is not essential for the system's operation. This can be achieved by blacklisting the driver module or modifying the system's configuration to prevent its loading. However, this workaround may impact the functionality of SATA controllers based on the DWC 460EX IP, so it should be carefully evaluated before implementation.
Conclusion
In conclusion, a vulnerability has been discovered in the sata_dwc_460ex driver of the Kernel package, which can lead to a system crash due to an out-of-bounds write. It is recommended to update the Linux Kernel to version v5.4.189 or later to fix this vulnerability. If immediate updating is not possible, disabling the sata_dwc_460ex driver can serve as a temporary workaround. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability can range from a denial-of-service condition to potential code execution if the attacker can control the data written.
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 for this vulnerability is available in version v5.4.189 of the Linux Kernel. It is recommended to update to this version or later to fix the vulnerability.
A possible workaround is to disable the sata_dwc_460ex driver if it is not essential for the system's operation. However, this workaround may impact the functionality of SATA controllers based on the DWC 460EX IP, so it should be carefully evaluated before implementation.
You can find more information about this vulnerability in the vulnerability database maintained by the Cloud Security Alliance. The specific vulnerability ID is GSD-2022-1002176.
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