{"id":"CVE-2018-12293","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-12293","generatedAt":"2026-10-29T01:49:13.508Z","title":"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…","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.","published":"2018-06-19T21:29:01.000Z","lastModified":"2026-06-17T01:37:30.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.8,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-190","CWE-787"],"affected":["canonical/ubuntu linux","webkitgtk/webkitgtk\\+","wpewebkit/wpe webkit"],"epss":{"score":0.10033,"percentile":0.95593,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.08368,"percentile":0.9479},{"date":"2026-09-22","score":0.10394,"percentile":0.95517}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2018-08-16","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":45205,"kind":"exploit","title":"WebkitGTK+ 2.20.3 - 'ImageBufferCairo::getImageData()' Buffer Overflow (PoC)","url":"https://www.exploit-db.com/exploits/45205","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/local/45205.txt","file":"exploits/linux/local/45205.txt","published":"2018-08-16","added":"2018-08-16","updated":"2018-08-17","author":"PeregrineX","type":"local","platform":"linux","port":null,"verified":false,"codes":["CVE-2018-12293"],"tags":"Buffer Overflow","aliases":null,"applicationUrl":"http://www.exploit-db.comwebkitgtk-2.20.2.tar.xz","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 10.0%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.10394,"from":0.08368,"percentile":0.95517},"summary":"EPSS moved from 8.4% to 10.4% probability of exploitation in the next thirty days."}],"references":[{"url":"http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2018/06/14/1","tags":["Mailing List","Technical Description"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/542087/100/0/threaded","source":"cve@mitre.org"},{"url":"https://bugs.webkit.org/show_bug.cgi?id=186384","tags":["Permissions Required","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201808-04","source":"cve@mitre.org"},{"url":"https://trac.webkit.org/changeset/232618","tags":["Patch","Third Party Advisory","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3687-1/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/45205/","source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2018/06/14/1","tags":["Mailing List","Technical Description"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/542087/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.webkit.org/show_bug.cgi?id=186384","tags":["Permissions Required","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201808-04","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://trac.webkit.org/changeset/232618","tags":["Patch","Third Party Advisory","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3687-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/45205/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-12293","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}