Vulnerability Information
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Vulnerability Title
SDL_image has a heap buffer overflow READ via unchecked colormap index in XCF loader
Vulnerability Description
SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). A crafted .xcf file with a small colormap and out-of-range pixel indices causes heap out-of-bounds reads of up to 762 bytes past the colormap allocation. Both IMAGE_INDEXED code paths are affected (bpp=1 and bpp=2). The leaked heap bytes are written into the output surface pixel data, making them potentially observable in the rendered image. This vulnerability is fixed with commit 996bf12888925932daace576e09c3053410896f8.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
Vulnerability Type
跨界内存读
Vulnerability Title
SDL_image 缓冲区错误漏洞
Vulnerability Description
SDL_image是Simple Directmedia Layer开源的一个支持多种格式的图像加载库。 SDL_image存在缓冲区错误漏洞，该漏洞源于未验证像素索引值，可能导致堆越界读取。
CVSS Information
N/A
Vulnerability Type
N/A