In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init_get_bits is ignored and get_ue_golomb(&gb) is called on an uninitialized get_bits context, which causes a NULL deref exception.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libav | Libav | 13_dev0 (including) | 13_dev0 (including) |
| Ffmpeg | Ubuntu | artful | * |
| Ffmpeg | Ubuntu | upstream | * |
| Ffmpeg | Ubuntu | zesty | * |