CVE-2018-12293

Name: CVE-2018-12293
Creator: NVD / NIST
Published: 2018-06-19T21:29:00.957+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 10.53%

Last modified Jun 17, 2026

CVE-2018-12293 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 10.53% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

10.53%

95.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Canonical	Ubuntu Linux	18.04
Webkitgtk	Webkitgtk\+	< 2.20.3
Wpewebkit	Wpe Webkit	< 2.20.1

References

http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.htmlThird Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2018/06/14/1Mailing List, Technical Description
http://www.securityfocus.com/archive/1/542087/100/0/threaded
https://bugs.webkit.org/show_bug.cgi?id=186384Permissions Required, Vendor Advisory
https://security.gentoo.org/glsa/201808-04
https://trac.webkit.org/changeset/232618Patch, Third Party Advisory, Vendor Advisory
https://usn.ubuntu.com/3687-1/Third Party Advisory
https://www.exploit-db.com/exploits/45205/
http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.htmlThird Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2018/06/14/1Mailing List, Technical Description
http://www.securityfocus.com/archive/1/542087/100/0/threaded
https://bugs.webkit.org/show_bug.cgi?id=186384Permissions Required, Vendor Advisory
https://security.gentoo.org/glsa/201808-04
https://trac.webkit.org/changeset/232618Patch, Third Party Advisory, Vendor Advisory
https://usn.ubuntu.com/3687-1/Third Party Advisory
https://www.exploit-db.com/exploits/45205/

Timeline

Published: Jun 19, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12293?

How severe is CVE-2018-12293?

Severity scoring for CVE-2018-12293 is pending analysis. The EPSS model estimates a 10.53% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12293?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12293?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST