Vulnerability in Kernel package: sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb
Summary
GSD-2021-1001534: sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb. Affects Kernel versions >= 3acb50c18d8d6650f10919464ade4dcdaf41d62f, < 77bc7dcf0fcc1519341a91788d7a2914fcfddf6d. No fix is published. How to fix ↓
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Background
The Kernel package is a crucial component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software. It plays a vital role in ensuring the stability and security of the system. However, a vulnerability has been discovered in the Kernel package, specifically in the sctp_rcv_ootb function. This function is responsible for handling out-of-the-blue (OOTB) packets in the Stream Control Transmission Protocol (SCTP) module. The vulnerability arises when skb_header_pointer returns NULL, leading to a potential security issue.
Vulnerability Detail
The vulnerability in the Kernel package's sctp_rcv_ootb function can have serious consequences. An attacker could exploit this vulnerability to cause a denial-of-service (DoS) condition or potentially execute arbitrary code with kernel-level privileges. The vulnerability was introduced in version v4.8 of the Linux Kernel and was fixed in version v4.14.249. It is important to note that 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
No specific workaround has been provided for this vulnerability. It is advised to apply the recommended fix by updating the Linux Kernel package to the latest stable version.
Conclusion
In conclusion, a vulnerability has been identified in the Kernel package's sctp_rcv_ootb function. It is crucial to update the Linux Kernel package to version v4.14.249 or later to mitigate the risk associated with this vulnerability. For further support on 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 system resources and providing an interface between hardware and software.
The sctp_rcv_ootb function is part of the Stream Control Transmission Protocol (SCTP) module in the Kernel package. It handles out-of-the-blue (OOTB) packets.
The vulnerability could potentially lead to a denial-of-service (DoS) condition or allow an attacker to execute arbitrary code with kernel-level privileges.
To fix this vulnerability, it is recommended to update the Linux Kernel package to version v4.14.249 or later.
No specific workaround has been provided. It is advised to update the Linux Kernel package to the latest stable version.
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