DOS / potential heap overwrite in mkv demuxing using lzo decompression. Integer overflow in matroskademux element in lzo decompression function which causes a segfault, or could cause a heap overwrite, depending on libc and OS. Depending on the libc used, and the underlying OS capabilities, it could be just a segfault or a heap overwrite. If the libc uses mmap for large chunks, and the OS supports mmap, then it is just a segfault (because the realloc before the integer overflow will use mremap to reduce the size of the chunk, and it will start to write to unmapped memory). However, if using a libc implementation that does not use mmap, or if the OS does not support mmap while using libc, then this could result in a heap overwrite.
{
"unresolved_ranges": [
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "10.0"
}
],
"cpe": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
},
{
"source": "CPE_FIELD",
"extracted_events": [
{
"last_affected": "11.0"
}
],
"cpe": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
}
]
}{
"source": "CPE_FIELD",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.20.3"
}
],
"cpe": "cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*"
}