CVE-2018-12293: Integer Overflow
First published: Thu Jun 14 2018(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 | |
| ubuntu/webkit2gtk | <2.20.3-0ubuntu0.17.10.1 | 2.20.3-0ubuntu0.17.10.1 |
| ubuntu/webkit2gtk | <2.20.3-0ubuntu0.18.04.1 | 2.20.3-0ubuntu0.18.04.1 |
| ubuntu/webkit2gtk | <2.20.3 | 2.20.3 |
| ubuntu/webkit2gtk | <2.20.3-0ubuntu0.16.04.1 | 2.20.3-0ubuntu0.16.04.1 |
| debian/webkit2gtk | 2.44.2-1~deb11u1 2.44.3-1~deb11u1 2.44.2-1~deb12u1 2.44.3-1~deb12u1 2.44.3-1 2.44.4-1 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2018/06/14/1
- http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html
- https://bugs.webkit.org/show_bug.cgi?id=186384
- https://trac.webkit.org/changeset/232618
- https://usn.ubuntu.com/3687-1/
- https://www.exploit-db.com/exploits/45205/
- http://www.securityfocus.com/archive/1/542087/100/0/threaded
- https://security.gentoo.org/glsa/201808-04
- https://launchpad.net/bugs/cve/CVE-2018-12293
- https://webkitgtk.org/security/WSA-2018-0005.html
- https://security-tracker.debian.org/tracker/CVE-2018-12293
- https://ubuntu.com/security/notices/USN-3687-1
- https://www.cve.org/CVERecord?id=CVE-2018-12293
- https://nvd.nist.gov/vuln/detail/CVE-2018-12293
- https://ubuntu.com/security/CVE-2018-12293
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.
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