isofs: Fix out of bound access for corrupted isofs image
Summary
GSD-2021-1002211: isofs: Fix out of bound access for corrupted isofs image. Affects Kernel versions < e7fb722586a2936b37bdff096c095c30ca06404d. No fix is published. How to fix ↓
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Background
The isofs package is a component of the Linux Kernel, which is responsible for handling ISO 9660 file systems. ISO 9660 is a standard file system for optical disc media, commonly used for CDs and DVDs. The isofs package provides support for reading and manipulating ISO 9660 file systems in the Linux operating system. However, a vulnerability has been discovered in the isofs package that allows for out-of-bound access when processing corrupted isofs images.
Vulnerability Detail
The vulnerability in the isofs package arises from a lack of proper bounds checking when handling corrupted isofs images. An attacker can exploit this vulnerability by crafting a malicious isofs image that triggers an out-of-bound access, potentially leading to a crash or arbitrary code execution. The impact of this vulnerability depends on the context in which the isofs package is used. If the isofs package is utilized in a critical system component, such as a file system driver, the vulnerability could allow an attacker to gain elevated privileges or compromise the integrity of the system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is recommended to apply the fix by updating the Linux Kernel to the patched version.
Conclusion
The isofs package in the Linux Kernel is vulnerable to out-of-bound access when processing corrupted isofs images. This vulnerability has been addressed in the Linux Kernel version v5.15.2 by applying commit e7fb722586a2936b37bdff096c095c30ca06404d. Users are advised to update their Linux Kernel to at least this version to mitigate the risk. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The isofs package is a component of the Linux Kernel that handles ISO 9660 file systems, commonly used for CDs and DVDs.
The impact of this vulnerability depends on the context in which the isofs package is used. If it is utilized in a critical system component, an attacker could potentially gain elevated privileges or compromise the system's integrity.
To fix this vulnerability, users should update their Linux Kernel to at least version v5.15.2, which includes the necessary fix for the isofs package.
There is no known workaround for this vulnerability. It is recommended to update the Linux Kernel to the patched version.
For more information about this vulnerability, you can refer to the provided references link in the vulnerability details.
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