Critical Vulnerability in Linux Package: ASoC: soc-pcm Callback Error Handling
Summary
DEBIAN-CVE-2024-58077: In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-pcm: don't use soc_pcm_ret() on .prepare callback commit 1f5664351410 ("ASoC: lower "no backend DAIs enabled for ... Affects linux versions < 6.12.15-1. Fixed in 6.12.15-1. How to fix ↓
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Background
The Linux package is a core component of the Debian operating system, providing the essential kernel functionalities that manage hardware and system resources. This package is crucial for system stability and performance, enabling communication between software and hardware components. The vulnerability in question affects the ASoC (ALSA System on Chip) subsystem, specifically in the handling of error messages during the .prepare callback, which could lead to denial-of-service scenarios if exploited.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified in the ASoC subsystem where the soc_pcm_ret() function is improperly used in the .prepare callback. This function ignores -EINVAL error messages, which can lead to misleading logs and potential denial-of-service attacks. The oversight stems from a design decision to avoid logging errors that could expose system weaknesses to userspace, but this approach has inadvertently created a security risk. The vulnerability is documented under DEBIAN-CVE-2024-58077.
How To Fix
Minimum fixed version
6.12.15-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the patch by updating the package to the latest version.
Conclusion
The vulnerability identified in the Linux package poses a significant risk due to improper error handling in the ASoC subsystem. It is crucial for users to update their systems to the patched versions to mitigate potential denial-of-service attacks. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
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FAQ
The vulnerability involves improper error handling in the ASoC subsystem of the Linux kernel, which could lead to denial-of-service attacks.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without any signup.
Failure to address this vulnerability could result in system instability and potential denial-of-service attacks, impacting the availability of services.
Yes, the vulnerability is fixed in Linux package versions 6.1.129-1~deb11u1 for Debian 11 and 6.12.15-1 for Debian 13 and 14.
Regularly update your packages to the latest versions, monitor for vulnerabilities using tools like Vulert, and apply security patches promptly.
References
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