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.

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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

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