Out-of-bounds Write Affecting webkit2gtk package, versions <2.20.3-1
Threat Intelligence
Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN13-WEBKIT2GTK-5698456
- published19 Jun 2018
- disclosed19 Jun 2018
Introduced: 19 Jun 2018
CVE-2018-12293 (opens in a new tab)How to fix?
Upgrade Debian:13 webkit2gtk to version 2.20.3-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream webkit2gtk package and not the webkit2gtk package as distributed by Debian.
See How to fix? for Debian:13 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2018-12293
- http://www.securityfocus.com/archive/1/542087/100/0/threaded
- https://www.exploit-db.com/exploits/45205/
- https://security.gentoo.org/glsa/201808-04
- 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
- http://www.openwall.com/lists/oss-security/2018/06/14/1
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-12293
- https://usn.ubuntu.com/3687-1/
- https://www.exploit-db.com/exploits/45205