Vulnerability in Kernel package: ima: fix reference leak in asymmetric_verify()
Summary
GSD-2022-1000409: ima: fix reference leak in asymmetric_verify(). Affects Kernel versions >= 947d70597236dd5ae65c1f68c8eabfb962ee5a6b, < 0838d6d68182f0b28a5434bc6d50727c4757e35b. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functions and facilitating communication between hardware and software. It provides essential services such as process management, memory management, and device drivers. The ima (Integrity Measurement Architecture) subsystem within the Kernel is designed to ensure the integrity of files and processes on the system. However, a vulnerability has been discovered in the asymmetric_verify() function of ima, which could lead to a reference leak.
Vulnerability Detail
The vulnerability in the asymmetric_verify() function of ima allows an attacker to cause a reference leak. This can result in the exhaustion of system resources, leading to a denial-of-service condition. By exploiting this vulnerability, an attacker may be able to disrupt the normal operation of the system and potentially gain unauthorized access or escalate privileges. The vulnerability was introduced in version v5.13 of the Linux Kernel and has been fixed in version v5.15.24.
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 strongly advised to apply the fix by updating the Linux Kernel package to the latest version.
Conclusion
In conclusion, a vulnerability has been identified in the Kernel package, specifically in the ima subsystem's asymmetric_verify() function. This vulnerability can lead to a denial-of-service condition and potential unauthorized access or privilege escalation. It is crucial to update the Linux Kernel package to version v5.15.24 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can lead to a denial-of-service condition and potentially allow an attacker to gain unauthorized access or escalate privileges.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it in real-time.
The details of remote exploitation are not provided in the vulnerability report. However, it is always recommended to apply security patches and updates as soon as they become available to mitigate any potential risks.
There is no information available regarding active exploitation of this vulnerability in the wild. However, it is important to stay vigilant and apply the necessary updates to protect against potential threats.
You can find more information about this vulnerability in the vulnerability report provided by the Cloud Security Alliance's GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000409.json).
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