Incomplete Fix in ax25 Package Leads to UAF and NPD Bugs
Summary
GSD-2022-1000350: ax25: improve the incomplete fix to avoid UAF and NPD bugs. Affects Kernel versions < cfc8b37ef0418529e3719c2d128e59e74a3114b0. No fix is published. How to fix ↓
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Background
The ax25 package is a component of the Linux Kernel, which is responsible for implementing the AX.25 protocol. This protocol is used for packet radio systems and enables communication between amateur radio stations. The ax25 package provides the necessary functionality for transmitting and receiving data over AX.25 networks. However, a vulnerability has been identified in the ax25 package that could lead to use-after-free (UAF) and null pointer dereference (NPD) bugs.
Vulnerability Detail
The vulnerability in the ax25 package arises from an incomplete fix. The exact origin of the vulnerability is not mentioned in the provided information. However, it is stated that the vulnerability has the potential to result in UAF and NPD bugs. These types of bugs can be exploited by attackers to execute arbitrary code, crash the system, or cause other unintended behavior. 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
No workaround is mentioned in the provided information.
Conclusion
The ax25 package in the Linux Kernel has been found to have an incomplete fix, which could lead to use-after-free (UAF) and null pointer dereference (NPD) bugs. It is crucial for users to update their Linux Kernel to version v5.4.181 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The ax25 package is a component of the Linux Kernel that implements the AX.25 protocol for packet radio systems.
The impact of the vulnerability is not specified in the provided information. However, it has the potential to result in use-after-free (UAF) and null pointer dereference (NPD) bugs.
The vulnerability can be fixed by updating the Linux Kernel to version v5.4.181 or later.
No workaround is mentioned in the provided information.
More information about the fix can be found in the official Linux Kernel documentation or guidelines.
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