Use After Free Vulnerability in net:emac/emac-mac
Summary
GSD-2021-1000481: net:emac/emac-mac: Fix a use after free in emac_mac_tx_buf_send. Affects Kernel versions >= b9b17debc69d27cd55e21ee51a5ba7fc50a426cf, < c7f75d11fe72913d2619f97b2334b083cd7bb955. No fix is published. How to fix ↓
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Background
The net:emac/emac-mac package is a component of the Linux Kernel that provides support for Ethernet Media Access Control (MAC) drivers. It is responsible for managing the transmission and reception of data packets over Ethernet connections. The vulnerability identified in this package is a use after free issue in the emac_mac_tx_buf_send function.
Vulnerability Detail
The use after free vulnerability in the emac_mac_tx_buf_send function can be exploited by an attacker to execute arbitrary code or cause a denial of service. This vulnerability occurs when the function continues to reference a buffer after it has been freed, leading to potential memory corruption or crashes. The impact and attack plausibility of this vulnerability have not been proven yet.
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.
Conclusion
The use after free vulnerability in the net:emac/emac-mac package can be mitigated by updating the Linux Kernel to the latest version. It is recommended to apply the necessary patches to ensure the security and stability of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The net:emac/emac-mac package is a component of the Linux Kernel that provides support for Ethernet Media Access Control (MAC) drivers.
A use after free vulnerability occurs when a program continues to reference a memory location after it has been freed, potentially leading to memory corruption or crashes.
The impact of this vulnerability can range from arbitrary code execution to denial of service, depending on how it is exploited.
To fix this vulnerability, update the Linux Kernel to version v4.9.269 or later.
No specific workaround has been mentioned for this vulnerability.
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