Stack-Based Buffer Overflow in WhatsApp Affecting Multiple Platforms
CVE-2019-11931

7.8HIGH

Key Information:

Vendor

Facebook

Status
WhatSAPp For Android
WhatSAPp For Ios
WhatSAPp For Windows Phone
WhatSAPp Enterprise Client
Vendor
CVE Published:
14 November 2019

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-11931?

A stack-based buffer overflow vulnerability in WhatsApp can be exploited by sending a specially crafted MP4 file to a user. This flaw exists in the parsing of elementary stream metadata within the MP4 file, potentially leading to Denial of Service (DoS) or Remote Code Execution (RCE). It affects specific versions across Android, iOS, and WhatsApp Business platforms prior to certain updates, posing significant security risks to users.

Affected Version(s)

WhatsApp Business for Android 2.19.104

WhatsApp Business for Android < 2.19.104

WhatsApp Business for iOS 2.19.100

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

whatsapp-rce-patched
Created by kasif-dekel

References

https://www.facebook.com/security/advisories/cve-2019-11931
x_refsource_CONFIRM

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2019-11931 : Stack-Based Buffer Overflow in WhatsApp Affecting Multiple Platforms