A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.
Acknowledgements: WhatsApp Security Team, Meta SSA Team
A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced incoming audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.
Acknowledgements: WhatsApp Security Team, Meta SSA Team