Critical Security Update for libsndfile: Integer Overflow Vulnerability
Summary
ALSA-2026:19560: Important: libsndfile security update. Affects libsndfile versions < 1.2.2-6.el10_2.1. Fixed in 1.2.2-6.el10_2.1. 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 sound files efficiently. However, the library is susceptible to security vulnerabilities, which can compromise the integrity and security of applications that rely on it.
Vulnerability Detail
The vulnerability identified as CVE-2026-37555 is an integer overflow issue occurring in the ima_reader_init() function of the libsndfile library. This flaw can potentially allow an attacker to exploit the library, leading to unexpected behavior, crashes, or even arbitrary code execution. The integer overflow may occur when processing specially crafted audio files, making it critical for users to address this vulnerability promptly.
How To Fix
Minimum fixed version
1.2.2-6.el10_2.1
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 processing untrusted audio files until the library is updated. This precaution can help mitigate the risk of exploitation while waiting for the official patch.
Conclusion
The integer overflow vulnerability in libsndfile poses significant risks to applications that utilize this library for audio processing. It is crucial for users to update to the patched version to safeguard their systems. Implementing the recommended updates and following best practices will help mitigate potential threats.
See every vulnerability recorded for libsndfile →
FAQ
CVE-2026-37555 is a security vulnerability in the libsndfile library that involves an integer overflow in the ima_reader_init() function.
If your application uses libsndfile to process audio files, it may be at risk of crashes or arbitrary code execution due to this vulnerability.
As a temporary measure, avoid processing untrusted audio files until you can apply the necessary updates.
For detailed information, refer to the CVE page associated with CVE-2026-37555 or the advisory provided by AlmaLinux.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using a manifest file like package-lock.json. Visit https://vulert.com for more details.
Related vulnerabilities
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