Use-after-free error during reset in igb
Summary
GSD-2021-1001405: igb: Fix use-after-free error during reset. Affects Kernel versions >= 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0, < d7367f781e5a9ca5df9082b15b272b55e76931f8. No fix is published. How to fix ↓
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Background
The igb package is a network driver for Intel Gigabit Ethernet Adapters. It provides support for various Intel Ethernet controllers. The driver is responsible for managing network communication and ensuring proper data transmission. However, a vulnerability has been discovered in the igb driver that can lead to a use-after-free error during a reset operation.
Vulnerability Detail
The use-after-free error occurs when the driver attempts to access memory that has already been freed. This can happen during a reset operation, where the driver releases resources and then tries to access them again. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition. The vulnerability was introduced in version v4.12 of the Linux Kernel and has been fixed in version v4.14.241.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to update the Linux Kernel to the fixed version to mitigate the risk.
Conclusion
The use-after-free error during reset in the igb driver can pose a significant security risk to systems running the affected version of the Linux Kernel. To mitigate this vulnerability, it is crucial to update the Linux Kernel to version v4.14.241 or later. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
This vulnerability can potentially allow an attacker to execute arbitrary code or cause a denial-of-service condition on a system running the affected version of the Linux Kernel.
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.
Yes, a patch has been released in version v4.14.241 of the Linux Kernel. It is recommended to update to this version or later to fix the vulnerability.
Yes, this vulnerability can be exploited remotely if an attacker can send malicious network traffic to a system running the affected version of the Linux Kernel.
There are no known instances of this vulnerability being exploited in the wild. However, it is still important to update to the fixed version of the Linux Kernel to prevent any potential attacks.
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