NetSurf libnsbmp through 0.1.7 Out-of-Bounds Read via bmp_decode_mask

NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmp_decode_mask() that allows attackers to read one byte past the image buffer by supplying crafted ICO files. Attackers can provide an ICO whose inner bitmap width is not a multiple of 8, causing a heap over-read that can crash applications calling bmp_decode().

NetSurf libnsbmp through 0.1.7 Out-of-Bounds Read in RLE8 and RLE4 Decoders

NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmp_decode_rle8() and bmp_decode_rle4() because absolute-run bound checks omit the word-alignment pad byte. Attackers can supply a crafted RLE8 or RLE4 BMP ending on an odd-length absolute run to cause a one-byte heap over-read, crashing applications decoding untrusted images.

Heap-based buffer overflow in the bmp_decode_rle function in libnsbmp.c in Libnsbmp 0.1.2 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via the last row of RLE data in a crafted BMP file.

libnsbmp.c in Libnsbmp 0.1.2 allows context-dependent attackers to cause a denial of service (out-of-bounds read) via a crafted color table to the (1) bmp_decode_rgb or (2) bmp_decode_rle function.