Vulnerability in Kernel package: sctp: do asoc update earlier in sctp_sf_do_dupcook_a
Summary
GSD-2021-1000214: sctp: do asoc update earlier in sctp_sf_do_dupcook_a. Affects Kernel versions >= 145cb2f7177d94bc54563ed26027e952ee0ae03c, < 0bfd913c2121b3d553bfd52810fe6061d542d625. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system. It provides the core functionality and interfaces for the system's operation. The sctp module within the Kernel package is responsible for implementing the Stream Control Transmission Protocol (SCTP), which is a transport layer protocol used for reliable and ordered message delivery. This vulnerability affects the sctp_sf_do_dupcook_a function within the sctp module.
Vulnerability Detail
The sctp_sf_do_dupcook_a function in the sctp module of the Kernel package is susceptible to a security vulnerability. The vulnerability arises from a delay in updating the association (asoc) structure, which can lead to a race condition. An attacker could potentially exploit this vulnerability to cause a denial-of-service (DoS) condition or execute arbitrary code with elevated privileges. The impact and attack plausibility of this vulnerability have not been proven.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability at this time.
Conclusion
In conclusion, the Kernel package's sctp module is vulnerable to a race condition in the sctp_sf_do_dupcook_a function. This vulnerability can potentially lead to a denial-of-service (DoS) condition or arbitrary code execution. It is crucial to update the Linux Kernel package to version v5.12.5 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) condition to potential arbitrary code execution with elevated privileges.
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 to the playground, and it will provide real-time monitoring and alerts for open-source vulnerabilities.
No, there is currently no known exploit for this vulnerability.
The recommended mitigation is to update the Linux Kernel package to version v5.12.5 or later.
You can find more information about this vulnerability in the official Linux Kernel repository: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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