Critical Integer Overflow Vulnerability in libsndfile Package
Summary
ALSA-2026:19559: Important: libsndfile security update. Affects libsndfile versions < 1.0.28-17.el8_10. Fixed in 1.0.28-17.el8_10. How to fix ↓
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Background
libsndfile is a widely-used C library designed for reading and writing audio files, including formats such as AIFF, AU, and WAV. It provides essential functionalities for audio processing applications, enabling developers to handle various audio file formats efficiently. However, the library has been found to be vulnerable to an integer overflow issue, which could potentially lead to severe security implications if exploited.
Vulnerability Detail
The vulnerability identified as CVE-2026-37555 is an integer overflow in the function ima_reader_init() within the libsndfile library. This flaw can be exploited by attackers to cause unexpected behavior in applications that rely on libsndfile, potentially leading to crashes or arbitrary code execution. The root cause of this vulnerability stems from improper handling of input data, which allows for the overflow condition to occur, compromising the integrity and security of the software utilizing this library.
How To Fix
Minimum fixed version
1.0.28-17.el8_10
This is the first release that contains the fix.
sudo dnf update libsndfileTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can avoid using the affected functionality of the libsndfile library until the package is updated. However, this is not a permanent solution and updating the package is strongly advised.
Conclusion
The libsndfile library has a critical vulnerability that could lead to severe security risks if not addressed. Users are strongly encouraged to update to the latest patched version to mitigate these risks. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
See every vulnerability recorded for libsndfile →
FAQ
libsndfile is a C library used for reading and writing audio files in various formats, providing essential tools for audio processing.
The vulnerability is an integer overflow in the ima_reader_init() function, which can lead to application crashes or arbitrary code execution.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without requiring signup.
If an immediate update is not possible, refrain from using the affected functionalities of the libsndfile library as a temporary workaround.
For detailed information about the CVE-2026-37555 vulnerability, refer to the official CVE page linked in the advisory.
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