Critical Code Execution Vulnerability in SDL2_image Package
Summary
ALPINE-CVE-2018-3839: An exploitable code execution vulnerability exists in the XCF image rendering functionality of Simple DirectMedia Layer SDL2_image-2.0.2. Affects sdl2_image versions < 2.0.1-r2. Fixed in 2.0.1-r2. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
SDL2_image is an image loading library that extends the functionality of the Simple DirectMedia Layer (SDL) by providing support for various image formats. It is widely used in multimedia applications to handle image rendering. However, it has been identified to have a serious vulnerability that can lead to code execution when processing specially crafted XCF images.
Vulnerability Detail
An exploitable code execution vulnerability exists in the XCF image rendering functionality of SDL2_image version 2.0.2. This vulnerability arises from an out-of-bounds write on the heap, which can be triggered by an attacker displaying a specially crafted XCF image. The consequences of this vulnerability can be severe, allowing an attacker to execute arbitrary code on the affected system. The CVSS score for this vulnerability is 8.8, indicating a high severity level.
How To Fix
Minimum fixed version
2.0.1-r2
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
As a temporary measure, avoid opening or processing untrusted XCF images until the package is updated. This can help prevent exploitation of the vulnerability.
Conclusion
The SDL2_image package has a critical vulnerability that can lead to code execution through specially crafted XCF images. It is crucial to update to the patched versions to protect against potential exploitation. Users should also consider using Vulert to monitor for vulnerabilities in their applications.
See every vulnerability recorded for sdl2_image →
FAQ
The vulnerability is a code execution flaw that can be exploited through specially crafted XCF images, leading to potential arbitrary code execution.
Versions prior to 2.0.1-r2 for Alpine v3.5 and v3.6, and prior to 2.0.2-r1 for Alpine v3.7 are affected.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
If immediate updates are not possible, refrain from using untrusted XCF images as a temporary workaround to mitigate the risk.
The CVSS score for this vulnerability is 8.8, indicating a high severity level.
References
Related vulnerabilities
Recent vulnerabilities recorded for sdl2_image.
