FFmpeg before 4.2 has a heap-based buffer overflow in vqa_decode_chunk because of an out-of-array access in vqa_decode_init in libavcodec/vqavideo.c.
CVSS Score
9.8
EPSS Score
0.006
Published
2019-10-14
FFmpeg through 4.2 has a "Conditional jump or move depends on uninitialised value" issue in h2645_parse because alloc_rbsp_buffer in libavcodec/h2645_parse.c mishandles rbsp_buffer.
CVSS Score
8.8
EPSS Score
0.005
Published
2019-09-05
In FFmpeg 4.1.3, there is a division by zero at adx_write_trailer in libavformat/rawenc.c.
CVSS Score
6.5
EPSS Score
0.004
Published
2019-07-07
block_cmp() in libavcodec/zmbvenc.c in FFmpeg 4.1.3 has a heap-based buffer over-read.
CVSS Score
8.8
EPSS Score
0.006
Published
2019-07-05
aa_read_header in libavformat/aadec.c in FFmpeg before 3.2.14 and 4.x before 4.1.4 does not check for sscanf failure and consequently allows use of uninitialized variables.
CVSS Score
9.8
EPSS Score
0.017
Published
2019-06-04
libavcodec/hevcdec.c in FFmpeg 3.4 and 4.1.2 mishandles detection of duplicate first slices, which allows remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or possibly have unspecified other impact via crafted HEVC data.
CVSS Score
8.8
EPSS Score
0.013
Published
2019-04-19
The studio profile decoder in libavcodec/mpeg4videodec.c in FFmpeg 4.0 before 4.0.4 and 4.1 before 4.1.2 allows remote attackers to cause a denial of service (out-of-array access) or possibly have unspecified other impact via crafted MPEG-4 video data.
CVSS Score
8.8
EPSS Score
0.007
Published
2019-04-19
In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.
CVSS Score
6.5
EPSS Score
0.019
Published
2019-03-12
A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a crafted video file in Matroska format, because handle_open_brace in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.
CVSS Score
6.5
EPSS Score
0.005
Published
2019-03-12
FFMPEG version 4.1 contains a CWE-129: Improper Validation of Array Index vulnerability in libavcodec/cbs_av1.c that can result in Denial of service. This attack appears to be exploitable via specially crafted AV1 file has to be provided as input. This vulnerability appears to have been fixed in after commit b97a4b658814b2de8b9f2a3bce491c002d34de31.
CVSS Score
6.5
EPSS Score
0.004
Published
2019-02-04