net: amd-xgbe: Fix skb data length underflow in Kernel
Summary
GSD-2022-1000085: net: amd-xgbe: Fix skb data length underflow. Affects Kernel versions >= fafc9555d87a19c78bcd43ed731c3a73bf0b37a9, < 9924c80bd484340191e586110ca22bff23a49f2e. 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 Kernel is a critical component of the Linux operating system that provides core functionalities and interfaces between hardware and software. It manages system resources, facilitates communication between processes, and handles device drivers. The vulnerability in the amd-xgbe module of the Kernel can lead to a data length underflow in skb (socket buffer) objects. This can potentially result in memory corruption and may be exploited by attackers to execute arbitrary code or cause a denial-of-service condition.
Vulnerability Detail
The vulnerability arises from a data length underflow issue in skb objects within the amd-xgbe module of the Kernel. When processing network packets, the module fails to properly validate the length of data within skb objects, leading to a potential underflow. This can result in memory corruption and may allow attackers to execute arbitrary code or disrupt the normal functioning of the system. The vulnerability was introduced in Kernel version v4.9.19 and has been fixed in version v4.9.300.
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
If updating the Kernel is not immediately feasible, a possible workaround is to implement network-level mitigations. This can include filtering and monitoring network traffic to detect and block potentially malicious packets that may exploit the vulnerability. However, it is important to note that workarounds may not provide complete protection and updating the Kernel is the recommended solution.
Conclusion
The vulnerability in the amd-xgbe module of the Kernel can result in memory corruption and potential code execution or denial-of-service attacks. It is crucial to update the Kernel to the fixed version v4.9.300 or later to mitigate these risks. Implementing network-level mitigations can provide temporary protection until the Kernel update is applied. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The vulnerability can potentially lead to memory corruption and allow attackers to execute arbitrary code or cause a denial-of-service condition.
You can use tools like Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
There is no evidence of this vulnerability being exploited in the wild at the time of this report. However, it is crucial to promptly apply the recommended fixes to mitigate potential risks.
Updating the Kernel to the fixed version is the primary mitigation for this vulnerability. Implementing network-level mitigations, such as filtering and monitoring network traffic, can provide temporary protection until the Kernel is updated.
For more details about this vulnerability, you can refer to the Open Source Vulnerability Database entry GSD-2022-1000085 (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000085.json).
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
