{"schemaVersion":3,"id":"CVE-2018-0500","aliases":["ALPINE-CVE-2018-0500","SUSE-SU-2018:2423-1","UBUNTU-CVE-2018-0500","USN-3710-1","DEBIAN-CVE-2018-0500"],"status":"published","duplicateOf":null,"title":null,"description":"Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value).","dates":{"published":"2018-07-11T13:00:00.000Z","modified":"2024-08-05T03:28:11.048Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Alpine","score":9.8,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Ubuntu","score":9.8,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Debian","score":9.8,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true}]},"epss":{"probability":0.06352,"percentile":0.93564,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.06352},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.06433,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0517,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.06352,"percentile":0.93564}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0517,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.06352,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.06352,"percentile":0.93564}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_FD329F0ADDC95812","name":"Exploit Reference (curl.haxx.se)","source":"reference","url":"https://curl.haxx.se/docs/adv_2018-70a2.html","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-787","name":"Out-of-bounds Write","description":"The product writes data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/787.html"}],"affected":[{"vendor":"alpine","product":"curl","name":"curl","label":"curl","ecosystem":"Alpine Linux","cpePart":null,"purl":"pkg:apk/alpine/curl","purlType":"apk","versions":[{"text":"≥ 7.54.1, < 7.61.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.54.1, < 7.61.0-r0","eol":null,"hubHref":null},{"vendor":"canonical","product":"ubuntu_linux","name":"ubuntu linux","label":"ubuntu_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"17.10","noFixRecorded":false,"fixedIn":null},{"text":"18.04","noFixRecorded":false,"fixedIn":null}],"versionsText":"17.10 | 18.04","eol":{"isEol":true,"eolDate":"2018-07-19T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"17.10","label":"17.10 'Artful Aardvark'","eolFrom":"2018-07-19T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":"17.10"},"product":{"name":"ubuntu","label":"Ubuntu","category":"os"}},"hubHref":"/vendor/canonical/ubuntu_linux"},{"vendor":"debian","product":"curl","name":"curl","label":"curl","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/curl","purlType":"deb","versions":[{"text":"< 7.61.0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.61.0-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"curl","name":"curl","label":"curl","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/curl","purlType":"deb","versions":[{"text":"< 7.58.0-2ubuntu3.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.58.0-2ubuntu3.2","eol":null,"hubHref":null},{"vendor":"haxx","product":"curl","name":"curl","label":"curl","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 7.54.1, ≤ 7.60.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.54.1, ≤ 7.60.0","eol":null,"hubHref":"/vendor/haxx/curl"},{"vendor":"suse","product":"curl&distro=SUSE Linux Enterprise Module for Basesystem 15","name":"curl","label":"curl&distro=SUSE Linux Enterprise Module for Basesystem 15","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/curl&distro=SUSE Linux Enterprise Module for Basesystem 15","purlType":"rpm","versions":[{"text":"< 7.60.0-3.6.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.60.0-3.6.4","eol":null,"hubHref":null}],"affectedCount":6,"eol":{"hasEol":true,"count":1},"references":[{"url":"http://www.securitytracker.com/id/1041280","label":"www.securitytracker.com/id/1041280","hostname":"www.securitytracker.com","tags":["VDB Entry","X Refsource SECTRACK","Third Party Advisory"]},{"url":"https://github.com/curl/curl/commit/ba1dbd78e5f1ed67c1b8d37ac89d90e5e330b628","label":"github.com/curl/curl/commit/ba1dbd78e5f1ed67c1b8d37ac89d90e5e330b628","hostname":"github.com","tags":["X Refsource CONFIRM","Patch","Third Party Advisory"]},{"url":"https://curl.haxx.se/docs/adv_2018-70a2.html","label":"curl.haxx.se/docs/adv_2018-70a2.html","hostname":"curl.haxx.se","tags":["X Refsource CONFIRM","Exploit","Patch","Vendor Advisory"]},{"url":"https://security.gentoo.org/glsa/201807-04","label":"security.gentoo.org/glsa/201807-04","hostname":"security.gentoo.org","tags":["Vendor Advisory","X Refsource GENTOO","Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2018:2486","label":"access.redhat.com/errata/RHSA-2018:2486","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","Third Party Advisory"]},{"url":"https://usn.ubuntu.com/3710-1/","label":"usn.ubuntu.com/3710-1/","hostname":"usn.ubuntu.com","tags":["Vendor Advisory","X Refsource UBUNTU","Third Party Advisory"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2018-0500","label":"security.alpinelinux.org/vuln/CVE-2018-0500","hostname":"security.alpinelinux.org","tags":["Advisory"]},{"url":"https://www.suse.com/support/update/announcement/2018/suse-su-20182423-1/","label":"www.suse.com/support/update/announcement/2018/suse-su-20182423-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1099793","label":"bugzilla.suse.com/1099793","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2018-0500","label":"www.suse.com/security/cve/CVE-2018-0500","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://ubuntu.com/security/CVE-2018-0500","label":"ubuntu.com/security/CVE-2018-0500","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-3710-1","label":"ubuntu.com/security/notices/USN-3710-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-0500","label":"www.cve.org/CVERecord?id=CVE-2018-0500","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-0500","label":"security-tracker.debian.org/tracker/CVE-2018-0500","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["MGASA-2018-0423","OPENSUSE-SU-2024:10582-1"],"duplicates":[],"related":["OPENSUSE-SU-2024:10582-1"]},"timeline":[{"kind":"published","date":"2018-07-11T13:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T03:28:11.048Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T08:17:46.230Z","stale":false,"partial":false}}