Stack Information Leak in ipoctal Package
Summary
GSD-2021-1001511: ipack: ipoctal: fix stack information leak. Affects Kernel versions >= ba4dc61fe8c545a5d6a68b63616776556b771f51, < 741ea2670e021350e54f491106bdaa22dc50e6a0. No fix is published. How to fix ↓
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Background
The ipoctal package is a component of the Linux Kernel, which is responsible for managing the IP over Octal Data Link Control (DLC) protocol. This protocol allows for the transmission of IP packets over synchronous serial lines. The ipoctal package provides the necessary functionality for handling this protocol within the kernel. However, a vulnerability has been discovered in the package that can lead to a stack information leak.
Vulnerability Detail
The vulnerability in the ipoctal package allows an attacker to leak sensitive information from the kernel stack. By exploiting this vulnerability, an attacker can gain access to data stored on the stack, which may include sensitive information such as encryption keys, passwords, or other confidential data. This information leak can potentially be used to launch further attacks or compromise the security of the system. The vulnerability was introduced in version v3.5 of the Linux Kernel and has been fixed in version v4.9.285.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can apply patches or backports provided by the Linux distribution they are using. These patches may address the vulnerability and mitigate the risk of exploitation. It is recommended to consult the official documentation or support channels of the specific Linux distribution for guidance on applying patches or backports.
Conclusion
The ipoctal package in the Linux Kernel is vulnerable to a stack information leak, which can allow an attacker to access sensitive information stored on the kernel stack. To mitigate this vulnerability, it is crucial to update the Linux Kernel to version v4.9.285 or later. Applying patches or backports provided by the Linux distribution can also serve as a temporary workaround. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The ipoctal package is a component of the Linux Kernel that handles the IP over Octal Data Link Control (DLC) protocol, allowing for the transmission of IP packets over synchronous serial lines.
A stack information leak refers to a vulnerability that allows an attacker to access data stored on the stack, which may include sensitive information such as encryption keys, passwords, or other confidential data.
By exploiting this vulnerability, an attacker can gain access to sensitive information stored on the kernel stack, potentially leading to further attacks or compromise of the system's security.
Yes, this vulnerability has been fixed in version v4.9.285 of the Linux Kernel.
It is recommended to update the Linux Kernel to version v4.9.285 or later to fix this vulnerability. Additionally, applying patches or backports provided by your Linux distribution can serve as a temporary workaround.
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