Critical Code Execution Vulnerability in SDL2_image Package
Summary
ALPINE-CVE-2019-5057: An exploitable code execution vulnerability exists in the PCX image-rendering functionality of SDL2_image 2.0.4. Affects sdl2_image versions < 2.0.5-r0. Fixed in 2.0.5-r0. How to fix ↓
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Background
SDL2_image is an image loading library that extends the capabilities of the Simple DirectMedia Layer (SDL) by providing support for various image formats. It allows developers to easily load images into their applications, making it a popular choice for game development and multimedia applications. However, a vulnerability has been identified in versions prior to 2.0.5-r0, which can lead to severe security risks.
Vulnerability Detail
An exploitable code execution vulnerability exists in the PCX image-rendering functionality of SDL2_image version 2.0.4. A specially crafted PCX image can cause a heap overflow, potentially allowing an attacker to execute arbitrary code on the affected system. This vulnerability arises from improper handling of image data, which can be exploited by displaying a maliciously crafted image. The CVSS score for this vulnerability is 8.8, indicating a high severity level.
How To Fix
Minimum fixed version
2.0.5-r0
This is the first release that contains the fix.
sudo apk add --upgrade sdl2_imageTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If you cannot immediately update the package, consider avoiding the use of PCX images in your application until the update can be applied. Additionally, implement input validation to ensure that only trusted images are processed.
Conclusion
The SDL2_image package has a critical vulnerability that can lead to code execution through specially crafted PCX images. It is essential to update to the patched version 2.0.5-r0 to mitigate this risk. Users should also consider implementing workarounds until they can apply the update.
See every vulnerability recorded for sdl2_image →
FAQ
The vulnerability allows for code execution through a heap overflow when processing specially crafted PCX images.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Exploitation of this vulnerability could lead to unauthorized code execution, potentially compromising the security of the affected system.
Yes, the vulnerability is fixed in version 2.0.5-r0 of the SDL2_image package.
As a temporary measure, avoid using PCX images and ensure that only trusted images are processed in your application.
References
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