Slab-out-of-bounds Vulnerability in ipv6
Summary
GSD-2021-1001308: ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions. Affects Kernel versions >= f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74, < 830251361425c5be044db4d826aaf304ea3d14c6. No fix is published. How to fix ↓
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Background
The Linux Kernel is an open-source monolithic Unix-like computer operating system kernel. It provides essential services for the functioning of the operating system. The ipv6 module in the Linux Kernel is responsible for handling Internet Protocol version 6 (IPv6) network traffic. IPv6 is the most recent version of the Internet Protocol, designed to replace IPv4 and provide a larger address space. However, a vulnerability has been identified in the ipv6 module that could lead to a slab-out-of-bounds issue.
Vulnerability Detail
The slab-out-of-bounds vulnerability in the ipv6 module of the Linux Kernel allows an attacker to access memory outside the allocated slab. This can result in information disclosure or potential code execution. The vulnerability was introduced in version v5.3 of the Linux Kernel and was fixed in version v5.4.136. The specific commit that addressed this issue is 830251361425c5be044db4d826aaf304ea3d14c6. 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 slab-out-of-bounds vulnerability in the ipv6 module of the Linux Kernel can potentially lead to information disclosure or code execution. It is crucial to update the Linux Kernel to version v5.4.136 or later to mitigate this vulnerability. Users can also utilize the Vulert Playground (https://vulert.com/scanner) to check if their system is affected and seek additional support from DevNack.com for remediation.
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FAQ
The impact of this vulnerability could potentially lead to information disclosure or code execution.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, there are no known exploits for this vulnerability. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
The details regarding remote exploitation have not been provided. However, it is always recommended to apply security patches and updates to prevent any potential remote attacks.
For further support on vulnerability remediation, you can reach out to info@devnack.com. They can provide guidance and assistance in addressing this vulnerability.
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