A NULL pointer dereference was discovered in ifilter_bank of libfaad/filtbank.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service because adding to windowed output is mishandled in the ONLY_LONG_SEQUENCE case.
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 |
|---|---|---|---|
| Freeware_advanced_audio_decoder_2 | Audiocoding | * | 2.9.0 (excluding) |
| Faad2 | Ubuntu | bionic | * |
| Faad2 | Ubuntu | cosmic | * |
| Faad2 | Ubuntu | disco | * |
| Faad2 | Ubuntu | esm-apps/bionic | * |
| Faad2 | Ubuntu | esm-apps/xenial | * |
| Faad2 | Ubuntu | trusty | * |
| Faad2 | Ubuntu | trusty/esm | * |
| Faad2 | Ubuntu | xenial | * |