Stack-based Overflow in WhatsApp for iOS Product by Facebook
CVE-2018-20655

9.8CRITICAL

Key Information:

Vendor

Facebook

Status
WhatSAPp For iOS
WhatSAPp Business For iOS
Vendor
CVE Published:
14 June 2019

What is CVE-2018-20655?

A vulnerability in WhatsApp for iOS allows attackers to exploit a stack-based overflow due to a missing size check when parsing packets from a sender. This security flaw could potentially be triggered when users receive calls, affecting both regular and business versions of the app prior to version 2.18.90.24.

Affected Version(s)

WhatsApp Business for iOS 2.18.90.24

WhatsApp Business for iOS < 2.18.90.24

WhatsApp for iOS 2.18.90.24

References

https://www.facebook.com/security/advisories/cve-2018-20655/
x_refsource_MISC
http://www.securityfocus.com/bid/108805
vdb-entryx_refsource_BID

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2018-20655 : Stack-based Overflow in WhatsApp for iOS Product by Facebook