Heap-Based Buffer Over-Read in SDL Package - CVE-2019-7578
Summary
ALPINE-CVE-2019-7578: SDL (Simple DirectMedia Layer) through 1.2.15 and 2.x through 2.0.9 has a heap-based buffer over-read in InitIMA_ADPCM in audio/SDL_wave.c. Affects sdl versions < 1.2.15-r11. Fixed in 1.2.15-r11. How to fix ↓
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Background
SDL (Simple DirectMedia Layer) is a cross-platform development library designed to provide low-level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is widely used in game development and multimedia applications. The library facilitates the creation of games and other interactive applications by providing a simple interface for handling multimedia content. However, vulnerabilities in SDL can lead to severe security risks, making it crucial for developers to maintain updated versions.
Vulnerability Detail
The vulnerability identified as CVE-2019-7578 is a heap-based buffer over-read that affects SDL versions up to 1.2.15 and 2.x up to 2.0.9. This flaw originates from the InitIMA_ADPCM function in the SDL_wave.c file, which can lead to unauthorized access to sensitive data or application crashes. The severity of this vulnerability is rated at CVSS 8.1, indicating a high risk to systems utilizing affected versions of SDL. Attackers could exploit this vulnerability to read beyond the allocated memory, potentially leading to information disclosure or other malicious activities.
How To Fix
Minimum fixed version
1.2.15-r11
This is the first release that contains the fix.
sudo apk add --upgrade sdlTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If immediate updating is not feasible, consider implementing input validation and sanitization to minimize the risk of exploitation. Additionally, avoid using the affected functions until the package is updated.
Conclusion
CVE-2019-7578 represents a significant security risk for applications utilizing the SDL library. It is crucial for developers to update to the patched versions to protect their applications from potential exploitation. Regular monitoring for vulnerabilities using tools like Vulert can help maintain security in open-source software.
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FAQ
CVE-2019-7578 is a vulnerability in the SDL library that allows for a heap-based buffer over-read, which can lead to unauthorized data access.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The vulnerability affects SDL versions up to 1.2.15 and 2.x up to 2.0.9.
The CVSS score for CVE-2019-7578 is 8.1, indicating a high severity level.
If you cannot update immediately, implement input validation and avoid using the affected functions until an update can be performed.
References
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