The rtp_packetize_xiph_config function in modules/stream_out/rtpfmt.c in VideoLAN VLC media player before 2.1.6 uses a stack-allocation approach with a size determined by arbitrary input data, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted length value.
When executing VideoLAN VLC media player 3.0.8 with libqt on Windows, Data from a Faulting Address controls Code Flow starting at libqt_plugin!vlc_entry_license__3_0_0f+0x00000000003b9aba. NOTE: the VideoLAN security team indicates that they have not been contacted, and have no way of reproducing this issue.
In VideoLAN VLC media player 3.0.7.1, there is a NULL pointer dereference at the function SeekPercent of demux/asf/asf.c that will lead to a denial of service attack.
A vulnerability in mkv::event_thread_t in VideoLAN VLC media player 3.0.7.1 allows remote attackers to trigger a heap-based buffer overflow via a crafted .mkv file.
The xiph_SplitHeaders function in modules/demux/xiph.h in VideoLAN VLC media player 3.0.7.1 does not check array bounds properly. As a result, a heap-based buffer over-read can be triggered via a crafted .ogg file.