Main Vulnerability Database Vulnerabilities #VU22807

Integer overflow in WhatsApp Messenger for Android and WhatsApp Messenger for iOS - CVE-2019-11927

Published: November 17, 2019

Vulnerability identifier: #VU22807

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-11927

CWE-ID: CWE-190

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when parsing EXIF tags in WEBP images. A remote attacker can create a specially crafted WEBP image, send it to the victim, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

WhatsApp Messenger for Android
WhatsApp Messenger for iOS

How to mitigate CVE-2019-11927

Install updates from vendor's website.

WhatsApp Messenger for Android - update to 2.19.143
WhatsApp Messenger for iOS - update to 2.19.100

External References

https://www.facebook.com/security/advisories/cve-2019-11927

Related Security Bulletins