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CVE-2018-12293

8.8 · HIGH

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 vers…

Published Jun 19, 2018CWE-190EPSS 10.39%

Overview

CVE-2018-12293 is a high-severity vulnerability. It was published on June 19, 2018 and has a CVSS 3.0 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.htmlRefwww.openwall.com/lists/oss-security/2018/06/14/1Refwww.securityfocus.com/archive/1/542087/100/0/threadedRefbugs.webkit.org/show_bug.cgi?id=186384Refsecurity.gentoo.org/glsa/201808-04Reftrac.webkit.org/changeset/232618Refusn.ubuntu.com/3687-1/Refwww.exploit-db.com/exploits/45205/Refpacketstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.htmlRefwww.openwall.com/lists/oss-security/2018/06/14/1

How CyberStrike helps

Frequently asked questions

What is CVE-2018-12293?

CVE-2018-12293 is a high-severity vulnerability. It was published on June 19, 2018 and has a CVSS 3.0 base score of 8.8 (HIGH).

How severe is CVE-2018-12293?

This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-12293?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-12293?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-12293 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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