Use After Free Vulnerability in sja1000 Package
Summary
GSD-2021-1002503: can: sja1000: fix use after free in ems_pcmcia_add_card(). Affects Kernel versions >= fd734c6f25aea4b2b44b045e489aec67b388577e, < 923f4dc5df679f678e121c20bf2fd70f7bf3e288. No fix is published. How to fix ↓
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Background
The sja1000 package is a component of the Linux Kernel, which is responsible for handling CAN (Controller Area Network) communication. The sja1000 driver provides support for various CAN controllers, allowing devices to communicate over a CAN bus. This vulnerability specifically affects the ems_pcmcia_add_card() function within the sja1000 package.
Vulnerability Detail
The ems_pcmcia_add_card() function in the sja1000 package suffers from a use after free vulnerability. This vulnerability occurs when the function continues to reference memory after it has been freed, leading to potential memory corruption or crashes. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition.
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 vulnerability in the sja1000 package can be mitigated by updating the Linux Kernel to version v5.10.85 or later. It is crucial to apply this update to ensure the security and stability of systems utilizing the sja1000 package. For further assistance or support in addressing this vulnerability, please contact DevNack.com.
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FAQ
The sja1000 package is a component of the Linux Kernel that provides support for CAN communication.
A use after free vulnerability occurs when a program continues to reference memory after it has been freed, leading to potential memory corruption or crashes.
This vulnerability could allow an attacker to execute arbitrary code or cause a denial-of-service condition.
To fix this vulnerability, update the Linux Kernel to version v5.10.85 or later.
No, there is no known workaround for this vulnerability. Updating the Linux Kernel is the recommended solution.
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