Use-after-free vulnerability in cifs package
Summary
GSD-2023-1002386: cifs: Fix use-after-free in rdata->read_into_pages(). Affects Kernel versions < 2b693fe3f760c87fd9768e759f6297f743a1b3b0. No fix is published. How to fix ↓
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Background
The cifs package is a component of the Linux Kernel ecosystem. It provides support for the Common Internet File System (CIFS), which allows Linux systems to access files and directories on remote Windows servers. The package enables file sharing and network browsing functionalities. However, a use-after-free vulnerability has been discovered in the rdata->read_into_pages() function of the cifs package.
Vulnerability Detail
The use-after-free vulnerability in the rdata->read_into_pages() function of the cifs package allows an attacker to exploit a freed memory region. This can lead to various security issues, including remote code execution, privilege escalation, or denial of service. The vulnerability arises when the rdata structure is freed while still being accessed, potentially resulting in the execution of arbitrary code or the modification of critical data. 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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Conclusion
The use-after-free vulnerability in the cifs package can have severe security implications, including remote code execution and privilege escalation. It is crucial to update the Linux Kernel to version v5.10.168 or later to address this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The cifs package is a component of the Linux Kernel ecosystem that provides support for the Common Internet File System (CIFS), enabling Linux systems to access files and directories on remote Windows servers.
A use-after-free vulnerability occurs when a program continues to use a memory region after it has been freed. This can lead to various security issues, including remote code execution, privilege escalation, or denial of service.
The impact of this vulnerability can vary depending on the attacker's capabilities and the targeted system. It could potentially result in remote code execution, privilege escalation, or denial of service.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.168 or later. This update includes the necessary patch to address the use-after-free vulnerability.
No specific workaround has been provided for this vulnerability. It is advised to update to the latest version of the Linux Kernel to mitigate the risk.
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