An issue was discovered in zlib_decompress_extra in modules/demux/mkv/util.cpp in VideoLAN VLC media player 3.x through 3.0.7. The Matroska demuxer, while parsing a malformed MKV file type, has a double free.

An integer overflow in dav1d AV1 decoder that can occur when decoding videos with large frame size. This can lead to memory corruption within the AV1 decoder. We recommend upgrading past version 1.4.0 of dav1d.

A binary hijacking vulnerability exists within the VideoLAN VLC media player before 3.0.19 on Windows. The uninstaller attempts to execute code with elevated privileges out of a standard user writable location. Standard users may use this to gain arbitrary code execution as SYSTEM.

Videolan VLC prior to version 3.0.20 contains an Integer underflow that leads to an incorrect packet length.

Videolan VLC prior to version 3.0.20 contains an incorrect offset read that leads to a Heap-Based Buffer Overflow in function GetPacket() and results in a memory corruption.

VideoLAN dav1d before 1.2.0 has a thread_task.c race condition that can lead to an application crash, related to dav1d_decode_frame_exit.

An integer overflow in the VNC module in VideoLAN VLC Media Player through 3.0.17.4 allows attackers, by tricking a user into opening a crafted playlist or connecting to a rogue VNC server, to crash VLC or execute code under some conditions.

A NULL-pointer dereference in "Open" in avi.c of VideoLAN VLC Media Player 3.0.11 can a denial of service (DOS) in the application.

A buffer overflow vulnerability in the AVI_ExtractSubtitle component of VideoLAN VLC Media Player 3.0.11 allows attackers to cause an out-of-bounds read via a crafted .avi file.

A buffer overflow vulnerability in the __Parse_indx component of VideoLAN VLC Media Player 3.0.11 allows attackers to cause an out-of-bounds read via a crafted .avi file.