Out of Bounds Vulnerability in sch_cake Kernel Package
Summary
GSD-2021-1000920: sch_cake: Fix out of bounds when parsing TCP options and header. Affects Kernel versions >= 8b7138814f29933898ecd31dfc83e35a30ee69f5, < 4cefa061fc63f4d2dff5ab4083f43857cd7a2335. No fix is published. How to fix ↓
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Background
The sch_cake package is a component of the Linux Kernel, which is responsible for managing network traffic shaping. It provides Quality of Service (QoS) functionality by prioritizing and controlling the flow of packets. The package is widely used in Linux-based systems to optimize network performance and ensure fair distribution of bandwidth.
Vulnerability Detail
The identified vulnerability in sch_cake is related to parsing TCP options and header, which can lead to an out of bounds access. This vulnerability allows an attacker to manipulate the TCP options and header in a way that exceeds the allocated memory, potentially leading to memory corruption or crashes. The impact and attack plausibility of this vulnerability have not been proven yet, but it poses a potential security risk to systems utilizing the affected version of the Linux Kernel.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.4.128 or later. The fix for this vulnerability was implemented in commit 4cefa061fc63f4d2dff5ab4083f43857cd7a2335. Updating the Kernel will ensure that the sch_cake package is patched and protected against this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. The recommended approach is to update the Linux Kernel to the fixed version.
Conclusion
The identified out of bounds vulnerability in the sch_cake package of the Linux Kernel can potentially lead to memory corruption or crashes. It is crucial to update the Linux Kernel to version v5.4.128 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The sch_cake package is a component of the Linux Kernel that provides Quality of Service (QoS) functionality for network traffic shaping.
The impact of this vulnerability is not yet proven, but it has the potential to cause memory corruption or crashes in systems utilizing the affected version of the Linux Kernel.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.4.128 or later.
No specific workaround is mentioned for this vulnerability. Updating the Linux Kernel to the fixed version is the recommended approach.
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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