{"id":"CVE-2018-13406","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-13406","generatedAt":"2026-10-29T02:04:20.836Z","title":"An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c in the Linux kernel before 4.17.4 could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used.","description":"An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c in the Linux kernel before 4.17.4 could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used.","published":"2018-07-06T14:29:01.000Z","lastModified":"2026-06-17T01:39:22.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-190"],"affected":["linux/linux kernel","canonical/ubuntu linux","debian/debian linux"],"epss":{"score":0.00531,"percentile":0.44718,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9f645bcc566a1e9f921bdae7528a01ced5bc3713","tags":["Patch"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/104685","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1041355","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.4","tags":["Release Notes"],"source":"cve@mitre.org"},{"url":"https://github.com/torvalds/linux/commit/9f645bcc566a1e9f921bdae7528a01ced5bc3713","tags":["Patch"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3752-1/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3752-2/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3752-3/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3753-1/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3753-2/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3754-1/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9f645bcc566a1e9f921bdae7528a01ced5bc3713","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/104685","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1041355","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.4","tags":["Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/9f645bcc566a1e9f921bdae7528a01ced5bc3713","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3752-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3752-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3752-3/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3753-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3753-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3754-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-13406","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."}