UAF Vulnerability in net: qcom/emac
Summary
GSD-2021-1001184: net: qcom/emac: fix UAF in emac_remove. Affects Kernel versions >= 54e19bc74f3380d414681762ceed9f7245bc6a6e, < 8a225a6e07a57a1538d53637cb3d82bd3e477839. No fix is published. How to fix ↓
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Background
The net: qcom/emac package is a component of the Linux Kernel, which is responsible for managing the Qualcomm Ethernet MAC (Media Access Control) driver. This driver enables communication between the Qualcomm Ethernet controller and the operating system. The vulnerability identified in this package can lead to a Use-After-Free (UAF) condition.
Vulnerability Detail
The UAF vulnerability in net: qcom/emac, tracked as GSD-2021-1001184, arises from a flaw in the emac_remove function. This vulnerability allows an attacker to exploit a use-after-free condition, potentially leading to arbitrary code execution or a system crash. The vulnerability was introduced in version v4.9 of the Linux Kernel and has been fixed in version v5.13.5.
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 UAF vulnerability in net: qcom/emac can have severe consequences, including arbitrary code execution or system crashes. It is crucial to update the Linux Kernel to version v5.13.5 or later to mitigate this vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
The UAF vulnerability in net: qcom/emac can potentially allow an attacker to execute arbitrary code or crash the system.
You can check the version of the Linux Kernel installed on your system. If it is earlier than v5.13.5, your system may be vulnerable.
At the time of this report, no known exploits for this vulnerability have been disclosed.
Yes, this vulnerability can be exploited remotely if the attacker can establish network connectivity to the affected system.
There is no evidence of active exploitation of this vulnerability at the time of this report.
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