{"id":"CVE-2018-8781","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-8781","generatedAt":"2026-10-28T19:04:49.639Z","title":"The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at the Linux kernel version 3.4 and up to and including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions…","description":"The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at the Linux kernel version 3.4 and up to and including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space.","published":"2018-04-23T19:29:00.000Z","lastModified":"2026-06-17T02:05:23.000Z","status":"Modified","sourceIdentifier":"cve@checkpoint.com","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","redhat/enterprise linux desktop","redhat/enterprise linux server","redhat/enterprise linux workstation"],"epss":{"score":0.00491,"percentile":0.42009,"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 (0.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2018:2948","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:3083","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:3096","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://patchwork.freedesktop.org/patch/211845/","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://research.checkpoint.com/mmap-vulnerabilities-linux-kernel/","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://usn.ubuntu.com/3654-1/","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://usn.ubuntu.com/3654-2/","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://usn.ubuntu.com/3656-1/","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://usn.ubuntu.com/3674-1/","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://usn.ubuntu.com/3674-2/","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://usn.ubuntu.com/3677-1/","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://usn.ubuntu.com/3677-2/","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://www.debian.org/security/2018/dsa-4187","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://www.debian.org/security/2018/dsa-4188","tags":["Third Party Advisory"],"source":"cve@checkpoint.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2948","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3083","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3096","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://patchwork.freedesktop.org/patch/211845/","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://research.checkpoint.com/mmap-vulnerabilities-linux-kernel/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3654-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3654-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3656-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3674-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3674-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3677-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3677-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4187","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4188","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-8781","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."}