{"id":"CVE-2018-5803","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-5803","generatedAt":"2026-10-28T20:11:51.059Z","title":"In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the \"_sctp_make_chunk()\" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash.","description":"In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the \"_sctp_make_chunk()\" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash.","published":"2018-06-12T16:29:00.000Z","lastModified":"2026-06-17T02:00:49.000Z","status":"Modified","sourceIdentifier":"PSIRT-CNA@flexerasoftware.com","cvss":{"version":"3.0","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-20"],"affected":["linux/linux kernel","debian/debian linux","redhat/virtualization host","redhat/enterprise linux desktop","redhat/enterprise linux server","redhat/enterprise linux workstation"],"epss":{"score":0.00828,"percentile":0.57308,"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":"low","text":"Lower severity and a low EPSS score (0.83%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2018:1854","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2948","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:3083","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:3096","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:0641","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.102","tags":["Vendor Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.51","tags":["Vendor Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.25","tags":["Vendor Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.15.8","tags":["Vendor Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.121","tags":["Vendor Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.87","tags":["Vendor Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c","tags":["Vendor Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://secuniaresearch.flexerasoftware.com/advisories/81331/","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://secuniaresearch.flexerasoftware.com/secunia_research/2018-2/","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://usn.ubuntu.com/3654-1/","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://usn.ubuntu.com/3654-2/","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://usn.ubuntu.com/3656-1/","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://usn.ubuntu.com/3697-1/","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://usn.ubuntu.com/3697-2/","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://usn.ubuntu.com/3698-1/","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://usn.ubuntu.com/3698-2/","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://www.debian.org/security/2018/dsa-4187","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://www.debian.org/security/2018/dsa-4188","tags":["Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://www.spinics.net/lists/linux-sctp/msg07036.html","tags":["Mailing List","Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://www.spinics.net/lists/netdev/msg482523.html","tags":["Mailing List","Third Party Advisory"],"source":"PSIRT-CNA@flexerasoftware.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:1854","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"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://access.redhat.com/errata/RHSA-2019:0641","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.102","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.51","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.25","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.15.8","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.121","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.87","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://secuniaresearch.flexerasoftware.com/advisories/81331/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://secuniaresearch.flexerasoftware.com/secunia_research/2018-2/","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/3697-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3697-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3698-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3698-2/","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"},{"url":"https://www.spinics.net/lists/linux-sctp/msg07036.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.spinics.net/lists/netdev/msg482523.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-5803","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."}