Memory Corruption Vulnerability in dm integrity Package
Summary
GSD-2022-1000957: dm integrity: fix memory corruption when tag_size is less than digest size. Affects Kernel versions < 4d485cf9b609709e45d5113e6e2b1b01254b2fe9. No fix is published. How to fix ↓
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Background
The dm integrity package is a component of the Linux Kernel that provides data integrity protection for block devices. It ensures the integrity of data by calculating and verifying cryptographic tags. However, a vulnerability has been discovered in the package that can lead to memory corruption when the tag size is smaller than the digest size.
Vulnerability Detail
The vulnerability in dm integrity arises when the tag size is less than the digest size. This can result in memory corruption, potentially leading to various security issues such as data corruption, privilege escalation, or even remote code execution. An attacker could exploit this vulnerability by manipulating the tag size to trigger the memory corruption. 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. The recommended approach is to update the Linux Kernel to the fixed version.
Conclusion
The dm integrity package in the Linux Kernel is vulnerable to a memory corruption issue when the tag size is smaller than the digest size. This vulnerability can have serious security implications. It is recommended to update the Linux Kernel to the latest version to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The dm integrity package is a component of the Linux Kernel that provides data integrity protection for block devices.
The vulnerability can lead to memory corruption, potentially resulting in data corruption, privilege escalation, or remote code execution.
An attacker can exploit this vulnerability by manipulating the tag size to trigger memory corruption.
No, the impact and attack plausibility of this vulnerability have not been proven yet.
To fix this vulnerability, update the Linux Kernel to version v5.17.4 or later.
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