A vulnerability, which was classified as critical, has been found in Simple DirectMedia Layer 2.0.9. This issue affects the function SDL of the file libSDL2.a. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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 out-of-bounds read in the SDL function SDL_FreePalette_REAL at video/SDL_pixels.c.

The bug was discovered 05/09/2019. The weakness was released 05/20/2019 (Website). The advisory is shared at lists.fedoraproject.org. The identification of this vulnerability is CVE-2019-12220 since 05/20/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

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.

Entries connected to this vulnerability are available at 135277, 135278, 135279 and 135280.

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• Simple DirectMedia Layer

Version

• 2.0.9

License

• open-source

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