Locking Issues in ipv6 with loops over idev->addr_list
Summary
GSD-2022-1003410: ipv6: fix locking issues with loops over idev->addr_list. Affects Kernel versions < 7665af570b843f699eaf139609f070d910b7c0d6. 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 the essential services for the operating system and allows communication between hardware and software components. The ipv6 module in the Linux Kernel handles the implementation of the Internet Protocol version 6 (IPv6) networking protocol. It enables the use of IPv6 addresses and facilitates communication over IPv6 networks. However, a vulnerability has been discovered in the ipv6 module that involves locking issues with loops over idev->addr_list.
Vulnerability Detail
The vulnerability in the ipv6 module arises from locking issues when iterating over the idev->addr_list data structure. These locking issues can lead to race conditions and potential data corruption. 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 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 vulnerability in the ipv6 module of the Linux Kernel, involving locking issues with loops over idev->addr_list, has been identified. It is recommended to update the Linux Kernel to version v5.15.46 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Linux Kernel is an open-source monolithic Unix-like computer operating system kernel that provides essential services for the operating system and allows communication between hardware and software components.
The ipv6 module in the Linux Kernel handles the implementation of the Internet Protocol version 6 (IPv6) networking protocol, enabling the use of IPv6 addresses and facilitating communication over IPv6 networks.
The impact of this vulnerability is not yet proven, but it could potentially lead to a denial-of-service (DoS) condition or allow an attacker to execute arbitrary code with elevated privileges.
To fix this vulnerability, users should update their Linux Kernel to at least version v5.15.46, which includes the necessary fix for this issue.
No specific workaround has been mentioned for this vulnerability.
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