Sensitive Data Exposure in Linux Kernel: CVE-2024-42156
Summary
CVE-2024-42156: In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Wipe copies of clear-key structures on failure Wipe all sensitive data from stack for all IOCTLs, which convert a clear-key into a protected-... Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux kernel is the core component of many operating systems, providing essential services and managing hardware resources. It is known for its robustness and flexibility, supporting a wide range of devices and architectures. However, vulnerabilities can arise, such as CVE-2024-42156, which affects the handling of clear-key structures in the s390 architecture, potentially exposing sensitive data.
Vulnerability Detail
CVE-2024-42156 is a vulnerability in the Linux kernel that allows sensitive data to remain in memory after operations that convert clear-keys to protected or secure-keys. This issue arises from insufficient data wiping on failure, which can lead to unauthorized access to sensitive information. The vulnerability has a CVSS score of 4.1, indicating a moderate severity level, and affects multiple versions of the Linux package across Debian distributions.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds provided for this vulnerability. The best course of action is to apply the available updates as soon as they are released.
Conclusion
CVE-2024-42156 is a significant vulnerability in the Linux kernel that can lead to sensitive data exposure. Users are advised to update their systems promptly to mitigate the risks associated with this vulnerability. Utilizing tools like Vulert can help in monitoring and managing such vulnerabilities effectively.
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FAQ
CVE-2024-42156 is a vulnerability in the Linux kernel that can lead to sensitive data exposure due to improper handling of clear-key structures.
If your system uses an affected version of the Linux kernel, it may expose sensitive data in memory, which could be accessed by unauthorized users or processes.
You should update your Linux kernel to the latest version that includes the patch for this vulnerability to mitigate the risk.
Yes, you can use Vulert, which allows you to monitor and alert for open-source vulnerabilities in your software using just a manifest file like package-lock.json. You can check your application using the Vulert playground without any signup.
The CVSS score of CVE-2024-42156 is 4.1, indicating a moderate severity level.
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