IPv6 Panic Vulnerability in Linux Kernel
Summary
GSD-2022-1002157: ipv6: fix panic when forwarding a pkt with no in6 dev. Affects Kernel versions >= 7f4848229e91d508102b30396b8a1b710ac23637, < ab2f5afb7af5c68389e8c7dd29e0a98fbeaaa435. No fix is published. How to fix ↓
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Background
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing essential functionality. It is a critical part of the Linux ecosystem, enabling the execution of various software applications and services. The vulnerability in question affects the IPv6 implementation within the Linux Kernel.
Vulnerability Detail
The vulnerability arises when forwarding a packet with no IPv6 device (in6 dev). It can trigger a panic, leading to a system crash. The impact and attack plausibility of this vulnerability have not been proven yet. However, if successfully exploited, it could result in denial of service (DoS) or potentially allow an attacker to execute arbitrary code on the affected system. The vulnerability was introduced in Linux Kernel version v5.4.136 and has been fixed in version v5.4.190.
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 IPv6 Panic Vulnerability in the Linux Kernel can potentially lead to a system crash or allow for the execution of arbitrary code. It is crucial to update the Linux Kernel to version v5.4.190 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could range from a denial of service (DoS) to potential remote code execution on the affected system.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will alert you in real-time if the vulnerability is present.
As of now, there is no known exploit for this vulnerability. However, it is important to apply the recommended fix to mitigate any potential risks.
No, only versions starting from v5.4.136 up to v5.4.189 are affected. The vulnerability has been fixed in version v5.4.190.
For more details about this vulnerability, you can refer to the source link provided in the database_specific section of the vulnerability details.
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