{"id":"CVE-2017-13723","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-13723","generatedAt":"2026-10-28T22:11:11.184Z","title":"In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms…","description":"In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.","published":"2017-10-10T01:30:21.000Z","lastModified":"2026-06-17T01:05:03.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.8,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["x.org/x server","debian/debian linux"],"epss":{"score":0.00443,"percentile":0.38378,"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 (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.debian.org/security/2017/dsa-4000","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2017/10/04/10","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/101253","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76ac","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html","source":"cve@mitre.org"},{"url":"https://lists.x.org/archives/xorg-announce/2017-October/002808.html","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201710-30","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2017/dsa-4000","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2017/10/04/10","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/101253","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76ac","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.x.org/archives/xorg-announce/2017-October/002808.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201710-30","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-13723","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."}