Vulnerability in Kernel package: sctp: do asoc update earlier in sctp_sf_do_dupcook_a
Summary
UVI-2021-1000413: sctp: do asoc update earlier in sctp_sf_do_dupcook_a. Affects Kernel versions >= a204d577be70e0a0a6023cf1b9859c9ebffaeecd, < b1b31948c0af44628e43353828453461bb74098f. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system, responsible for managing the system's core functions and providing an interface between hardware and software. It includes various subsystems, such as networking, memory management, and device drivers. One of the subsystems is the Stream Control Transmission Protocol (SCTP), which is used for reliable, message-oriented communication between hosts. This vulnerability specifically affects the sctp_sf_do_dupcook_a function in the SCTP subsystem.
Vulnerability Detail
The vulnerability identified as UVI-2021-1000413 in the Kernel package's SCTP subsystem involves a timing issue in the sctp_sf_do_dupcook_a function. By not updating the association (asoc) earlier in the function, an attacker may be able to exploit this flaw to cause a denial-of-service (DoS) condition or potentially execute arbitrary code. 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. It is advised to apply the fix by updating the Kernel package to the recommended version.
Conclusion
In conclusion, the Kernel package's SCTP subsystem is vulnerable to a timing issue in the sctp_sf_do_dupcook_a function. This vulnerability can potentially lead to a denial-of-service (DoS) condition or arbitrary code execution. To mitigate the risk, it is crucial to update the Kernel package to version v5.4.120 or later. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel package is a critical component of the Linux operating system, responsible for managing core functions and providing an interface between hardware and software.
SCTP is a transport layer protocol used for reliable, message-oriented communication between hosts. It provides features like multi-homing, multi-streaming, and congestion control.
The impact of this vulnerability can range from a denial-of-service (DoS) condition to potential execution of arbitrary code. However, the actual impact and attack plausibility have not been proven yet.
To fix this vulnerability, update the Kernel package to version v5.4.120 or later, which includes the necessary patch to address the issue.
No specific workaround has been mentioned for this vulnerability. It is recommended to apply the fix by updating the Kernel package.
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