Double Free Vulnerability in igbvf Package
Summary
GSD-2021-1002622: igbvf: fix double free in igbvf_probe. Affects Kernel versions >= d4e0fe01a38a073568aee541a0247fe734095979, < 79d9b092035dcdbe636b70433149df9cc6db1e49. No fix is published. How to fix ↓
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Background
The igbvf package is a component of the Linux Kernel ecosystem. It provides support for Intel Gigabit Ethernet Virtual Function (VF) devices. These devices allow virtual machines to access the physical network through a virtualized network interface. The igbvf package is responsible for managing the VF devices and their associated resources.
Vulnerability Detail
The vulnerability identified in the igbvf package is a double free issue in the igbvf_probe function. A double free occurs when a program attempts to free a memory block that has already been freed. This can lead to memory corruption and potentially allow an attacker to execute arbitrary code or cause a denial-of-service condition. The vulnerability was introduced in version v2.6.30 of the Linux Kernel and has been fixed in version v4.9.294.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. The recommended approach is to apply the fix by updating to the latest version of the Linux Kernel.
Conclusion
The double free vulnerability in the igbvf package can have serious security implications. It is crucial to update to the latest version of the Linux Kernel to ensure the fix is applied and mitigate any potential risks. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The double free vulnerability in the igbvf package can potentially allow an attacker to execute arbitrary code or cause a denial-of-service condition.
You can use Vulert's playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
At the time of this report, there is no known exploit for this vulnerability. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
The recommended solution is to update to the latest version of the Linux Kernel. However, if updating is not feasible in the short term, additional security measures such as network segmentation and access controls can help mitigate the risk.
You can refer to the vulnerability details in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1002xxx/GSD-2021-1002622.json) for more information about this specific vulnerability.
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