Heap-based Buffer Overflow in giflib - CVE-2025-31344
Summary
CVE-2025-31344: Heap-based Buffer Overflow vulnerability in openEuler giflib on Linux. Affects giflib versions < 5.2.2-r1. Fixed in 5.2.2-r1. How to fix ↓
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Background
giflib is an open-source library used for reading and writing GIF images. It provides essential functionality for handling GIF files, including decoding and encoding capabilities. The library is widely utilized in various applications that require image processing. However, it has been found to be vulnerable to a heap-based buffer overflow, which can lead to severe security issues if exploited.
Vulnerability Detail
CVE-2025-31344 is a heap-based buffer overflow vulnerability found in giflib, specifically in the gif2rgb.C program files. This vulnerability arises from improper handling of memory allocation, allowing an attacker to exploit the overflow to execute arbitrary code or crash the application. The issue affects versions of giflib up to 5.2.2, making it critical for users to address this vulnerability promptly to prevent potential exploitation.
How To Fix
Minimum fixed version
5.2.2-r1
This is the first release that contains the fix.
sudo apk add --upgrade giflibTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If an immediate update is not feasible, consider disabling the functionality that utilizes giflib or restricting access to the application until the patch can be applied. Additionally, monitor the application for any unusual behavior that may indicate exploitation attempts.
Conclusion
CVE-2025-31344 represents a significant security risk for applications utilizing giflib. It is crucial for users to update to the patched version to protect against potential exploitation. Regular monitoring and prompt updates are essential in maintaining application security.
See every vulnerability recorded for giflib →
FAQ
CVE-2025-31344 is a heap-based buffer overflow vulnerability in the giflib library, which can lead to arbitrary code execution or application crashes.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The vulnerability affects giflib versions up to 5.2.2. Users should upgrade to version 5.2.2-r1 or later to mitigate the risk.
Exploitation of this vulnerability could allow attackers to execute arbitrary code, potentially leading to data breaches, system compromise, or application crashes.
Yes, you can temporarily disable the functionality that uses giflib or restrict access to the application until the patch is applied.
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