In FFmpeg 4.0.1, due to a missing check for negative values of the mquant variable, the vc1_put_blocks_clamped function in libavcodec/vc1_block.c may trigger an out-of-array access while converting a crafted AVI file to MPEG4, leading to an information disclosure or a denial of service.
2018-07-05T17:29:00.610
2024-11-21T03:46:48.617
Modified
CVSSv3.0: 8.1 (HIGH)
AV:N/AC:M/Au:N/C:P/I:N/A:P
8.6
4.9