A vulnerability classified as critical was found in Simple DirectMedia Layer 2.0.9. This vulnerability affects the function SDL of the file libSDL2.a. The manipulation with an unknown input leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in libSDL2.a in Simple DirectMedia Layer (SDL) 2.0.9 when used in conjunction with libSDL2_image.a in SDL2_image 2.0.4. There is an invalid free error in the SDL function SDL_SetError_REAL at SDL_error.c.

The bug was discovered 05/09/2019. The weakness was published 05/20/2019 (Website). The advisory is shared for download at lists.fedoraproject.org. This vulnerability was named CVE-2019-12219 since 05/20/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/23/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 11 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at VDB-135277, VDB-135278, VDB-135279 and VDB-135281.

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• Simple DirectMedia Layer

Version

• 2.0.9

License

• open-source

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