{"id":"CVE-2018-20346","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-20346","generatedAt":"2026-10-28T21:31:26.844Z","title":"SQLite before 3.25.3, when the FTS3 extension is enabled, encounters an integer overflow (and resultant buffer overflow) for FTS3 queries that occur after crafted changes to FTS3 shadow tables, allowing remote attackers to execute arbitrary code by…","description":"SQLite before 3.25.3, when the FTS3 extension is enabled, encounters an integer overflow (and resultant buffer overflow) for FTS3 queries that occur after crafted changes to FTS3 shadow tables, allowing remote attackers to execute arbitrary code by leveraging the ability to run arbitrary SQL statements (such as in certain WebSQL use cases), aka Magellan.","published":"2018-12-21T21:29:00.000Z","lastModified":"2026-06-17T01:52:40.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.1,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-190"],"affected":["sqlite/sqlite","google/chrome","redhat/linux","debian/debian linux","opensuse/leap"],"epss":{"score":0.10229,"percentile":0.95652,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.1197,"percentile":0.95992},{"date":"2026-09-22","score":0.10312,"percentile":0.95491}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 10.2%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00040.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00070.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/106323","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://access.redhat.com/articles/3758321","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://blade.tencent.com/magellan/index_en.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1659379","tags":["Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1659677","tags":["Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://chromereleases.googleblog.com/2018/12/stable-channel-update-for-desktop.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://chromium.googlesource.com/chromium/src/+/c368e30ae55600a1c3c9cb1710a54f9c55de786e","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://crbug.com/900910","tags":["Permissions Required","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/zhuowei/worthdoingbadly.com/blob/master/_posts/2018-12-14-sqlitebug.html","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10365","source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2018/12/msg00012.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html","source":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PU4NZ6DDU4BEM3ACM3FM6GLEPX56ZQXK/","source":"cve@mitre.org"},{"url":"https://news.ycombinator.com/item?id=18685296","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201904-21","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sqlite.org/src/info/940f2adc8541a838","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://sqlite.org/src/info/d44318f59044162e","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.apple.com/HT209443","source":"cve@mitre.org"},{"url":"https://support.apple.com/HT209446","source":"cve@mitre.org"},{"url":"https://support.apple.com/HT209447","source":"cve@mitre.org"},{"url":"https://support.apple.com/HT209448","source":"cve@mitre.org"},{"url":"https://support.apple.com/HT209450","source":"cve@mitre.org"},{"url":"https://support.apple.com/HT209451","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4019-1/","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4019-2/","source":"cve@mitre.org"},{"url":"https://worthdoingbadly.com/sqlitebug/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.freebsd.org/security/advisories/FreeBSD-EN-19:03.sqlite.asc","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.mail-archive.com/sqlite-users%40mailinglists.sqlite.org/msg113218.html","source":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","source":"cve@mitre.org"},{"url":"https://www.sqlite.org/releaselog/3_25_3.html","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://www.synology.com/security/advisory/Synology_SA_18_61","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00040.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00070.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/106323","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/articles/3758321","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://blade.tencent.com/magellan/index_en.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1659379","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1659677","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://chromereleases.googleblog.com/2018/12/stable-channel-update-for-desktop.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://chromium.googlesource.com/chromium/src/+/c368e30ae55600a1c3c9cb1710a54f9c55de786e","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://crbug.com/900910","tags":["Permissions Required","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/zhuowei/worthdoingbadly.com/blob/master/_posts/2018-12-14-sqlitebug.html","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10365","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/12/msg00012.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PU4NZ6DDU4BEM3ACM3FM6GLEPX56ZQXK/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://news.ycombinator.com/item?id=18685296","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201904-21","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sqlite.org/src/info/940f2adc8541a838","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sqlite.org/src/info/d44318f59044162e","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT209443","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT209446","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT209447","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT209448","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT209450","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT209451","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4019-1/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4019-2/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-20346","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."}