ngiflib commit 84a75 was discovered to contain a segmentation violation via the function SDL_LoadAnimatedGif at ngiflibSDL.c. This vulnerability is triggered when running the program SDLaffgif.

ngiflib commit fb271 was discovered to contain a segmentation violation via the function "main" at gif2tag.c. This vulnerability is triggered when running the program gif2tga.

ngiflib commit 5e7292 was discovered to contain an infinite loop via the function DecodeGifImg at ngiflib.c.

An issue was discovered in ngiflib 0.4. There is SEGV in SDL_LoadAnimatedGif when use SDLaffgif. poc : ./SDLaffgif CA_file2_0

ngiflib 0.4 has a heap overflow in GetByte() at ngiflib.c:70 in NGIFLIB_NO_FILE mode, GetByte() reads memory buffer without checking the boundary.

ngiflib 0.4 has a heap overflow in GetByteStr() at ngiflib.c:108 in NGIFLIB_NO_FILE mode, GetByteStr() copy memory buffer without checking the boundary.

An issue was discovered in GetByte function in miniupnp ngiflib version 0.4, allows local attackers to cause a denial of service (DoS) via crafted .gif file (infinite loop).

ngiflib 0.4 has a heap-based buffer over-read in GifIndexToTrueColor in ngiflib.c.

MiniUPnP ngiflib 0.4 has a NULL pointer dereference in GifIndexToTrueColor in ngiflib.c via a file that lacks a palette.

ngiflib 0.4 has a heap-based buffer overflow in WritePixels() in ngiflib.c when called from DecodeGifImg, because deinterlacing for small pictures is mishandled.

ngiflib 0.4 has a heap-based buffer overflow in WritePixel() in ngiflib.c when called from DecodeGifImg, because deinterlacing for small pictures is mishandled.

ngiflib.c in MiniUPnP ngiflib 0.4 has an infinite loop in DecodeGifImg and LoadGif.

GifIndexToTrueColor in ngiflib.c in MiniUPnP ngiflib 0.4 has a Segmentation fault.

ngiflib.c in MiniUPnP ngiflib 0.4 has a heap-based buffer over-read in GifIndexToTrueColor.

ngiflib.c in MiniUPnP ngiflib 0.4 has a stack-based buffer overflow in DecodeGifImg.

The DecodeGifImg function in ngiflib.c in MiniUPnP ngiflib 0.4 does not consider the bounds of the pixels data structure, which allows remote attackers to cause a denial of service (WritePixels heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted GIF file, a different vulnerability than CVE-2018-10677.

The DecodeGifImg function in ngiflib.c in MiniUPnP ngiflib 0.4 lacks certain checks against width and height, which allows remote attackers to cause a denial of service (WritePixels heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted GIF file.