CVE-2018-12293: Integer Overflow
Last updated 25 August 2025
Other sources
The getImageData function in the ImageBufferCairo class in WebCore/platform/graphics/cairo/ImageBufferCairo.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.3 and WPE WebKit prior to version 2.20.1, is vulnerable to a heap-based buffer overflow triggered by an integer overflow, which could be abused by crafted HTML content.
— Launchpad
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2018-12293?
CVE-2018-12293 is a vulnerability in WebKitGTK+ and WPE WebKit that could lead to a heap-based buffer overflow.
How does the vulnerability in CVE-2018-12293 work?
The vulnerability in CVE-2018-12293 is triggered by an integer overflow in the getImageData function of the ImageBufferCairo class in WebKit.
How severe is the vulnerability in CVE-2018-12293?
The severity of the vulnerability in CVE-2018-12293 is rated as high with a severity value of 8.8.
Which software versions are affected by CVE-2018-12293?
The vulnerability in CVE-2018-12293 affects WebKitGTK+ versions prior to 2.20.3 and WPE WebKit versions prior to 2.20.1.
How can I fix the vulnerability in CVE-2018-12293?
To fix the vulnerability in CVE-2018-12293, update to WebKitGTK+ version 2.20.3 or later, or update to WPE WebKit version 2.20.1 or later.