ASA-2020-00048 – WhatsApp: A stack write overflow could have allowed arbitrary code execution when playing a specially crafted push to talk message

A stack write overflow in WhatsApp for Android prior to v2.20.35, WhatsApp Business for Android prior to v2.20.20, WhatsApp for iPhone prior to v2.20.30, and WhatsApp Business for iPhone prior to v2.20.30 could have allowed arbitrary code execution when playing a specially crafted push to talk message.

ASA-2020-00047 – WhatsApp: A user controlled parameter used in video call could have allowed an out-of-bounds write on 32-bit devices

A user controlled parameter used in video call in WhatsApp for Android prior to v2.20.17, WhatsApp Business for Android prior to v2.20.7, WhatsApp for iPhone prior to v2.20.20, and WhatsApp Business for iPhone prior to v2.20.20 could have allowed an out-of-bounds write on 32-bit devices.

ASA-2020-00046 – WhatsApp: A URL validation issue could have caused the recipient of a sticker message to load an image from a sender-controlled URL

A URL validation issue in WhatsApp for Android prior to v2.20.11 and WhatsApp Business for Android prior to v2.20.2 could have caused the recipient of a sticker message containing deliberately malformed data to load an image from a sender-controlled URL without user interaction.

ASA-2020-00044 – WhatsApp: A buffer overflow could have allowed an out-of-bounds write via a specially crafted video stream

A buffer overflow in WhatsApp for Android prior to v2.20.11 and WhatsApp Business for Android prior to v2.20.2 could have allowed an out-of-bounds write via a specially crafted video stream after receiving and answering a malicious video call.