Critical Security Update for GEGL (gegl04) - Heap-Based Buffer Overflow Vulnerability
Summary
ALSA-2026:38497: Important: gegl04 security update. Affects gegl04 versions < 0.4.62-1.el9_8.1. Fixed in 0.4.62-1.el9_8.1. How to fix ↓
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Background
GEGL (Generic Graphics Library) is a graph-based image processing framework widely used in applications like GIMP for handling high-quality image processing tasks. It provides a flexible and efficient way to manipulate images through a series of interconnected operations. However, a recent vulnerability has been identified that could allow attackers to execute arbitrary code through a heap-based buffer overflow during HDR file parsing.
Vulnerability Detail
The vulnerability arises from improper handling of HDR file parsing within the GEGL library, specifically in the gegl04 package. This flaw can lead to a heap-based buffer overflow, allowing attackers to execute arbitrary code on the affected system. The potential ramifications include unauthorized access to system resources, data corruption, and complete system compromise. The vulnerability is tracked under CVE-2026-2050.
How To Fix
Minimum fixed version
0.4.62-1.el9_8.1
This is the first release that contains the fix.
sudo dnf update gegl04Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users are advised to avoid opening HDR files with the affected versions of GEGL until the update has been applied. Additionally, consider using alternative image processing libraries that do not exhibit this vulnerability.
Conclusion
The GEGL (gegl04) package has a critical vulnerability that could allow for arbitrary code execution through improper HDR file parsing. It is essential to update to the patched version to mitigate this risk. Users are encouraged to monitor their systems for vulnerabilities using tools like Vulert.
See every vulnerability recorded for gegl04 →
FAQ
The vulnerability is a heap-based buffer overflow that can lead to arbitrary code execution when processing HDR files.
You can check if your application is affected by using Vulert, which monitors open-source vulnerabilities in your software. Visit Vulert Scanner to use the playground without signup.
The risks include unauthorized access to system resources, data corruption, and the possibility of a complete system compromise.
Yes, a patch is available in version 0.4.62-1.el9_8.1 or later of the affected packages.
If immediate updates are not possible, avoid using the affected functionalities, particularly when dealing with HDR files.
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