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 v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2019-11927
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WhatsApp
Affected software:
WhatsApp Messenger for Android
WhatsApp Messenger for iOS
WhatsApp Messenger for Android
WhatsApp Messenger for iOS
Detailed vulnerability description
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.
How to mitigate CVE-2019-11927
Install updates from vendor's website.