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

Allele Security Alert

ASA-2020-00048

Identifier(s)

ASA-2020-00048, CVE-2020-1894

Title

A stack write overflow could have allowed arbitrary code execution when playing a specially crafted push to talk message

Vendor(s)

Facebook

Product(s)

Facebook WhatsApp

Affected version(s)

WhatsApp for Android versions before v2.20.35
WhatsApp Business for Android versions before v2.20.20
WhatsApp for iPhone versions before v2.20.30
WhatsApp Business for iPhone versions before v2.20.30

Fixed version(s)

WhatsApp for Android version v2.20.35
WhatsApp Business for Android version v2.20.20
WhatsApp for iPhone version v2.20.30
WhatsApp Business for iPhone version v2.20.30

Proof of concept

Unknown

Description

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.

Technical details

Unknown

Credits

Unknown

Reference(s)

WhatsApp Security Advisories
https://www.whatsapp.com/security/advisories/2020

CVE-2020-1894
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1894

CVE-2020-1894
https://nvd.nist.gov/vuln/detail/CVE-2020-1894

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Last modified: September 9, 2020

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