In the mxfreadprimerpack function in libavformat/mxfdec.c in FFmpeg 3.3.3 -> 2.4, an integer signedness error might occur when a crafted file, which claims a large "itemnum" field such as 0xffffffff, is provided. As a result, the variable "item_num" turns negative, bypassing the check for a large value.
{
"unresolved_ranges": [
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "9.0"
}
],
"cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
}
]
}{
"source": "CPE_FIELD",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "3.3.3"
},
{
"last_affected": "8.0"
}
],
"cpe": [
"cpe:2.3:a:ffmpeg:ffmpeg:3.3.3:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
]
}