{"schemaVersion":3,"id":"CVE-2018-20097","aliases":["PYSEC-2018-118","DEBIAN-CVE-2018-20097"],"status":"published","duplicateOf":null,"title":null,"description":"There is a SEGV in Exiv2::Internal::TiffParserWorker::findPrimaryGroups of tiffimage_int.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.","dates":{"published":"2018-12-12T00:00:00.000Z","modified":"2024-08-05T11:51:18.966Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4.3,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Pypi","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true}]},"epss":{"probability":0.02287,"percentile":0.82903,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.02287},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02287,"percentile":0.82903}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02287,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02287,"percentile":0.82903}]},"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":"GITHUB_EXIV2_EXIV2","name":"Exiv2","source":"github","url":"https://github.com/Exiv2/exiv2/issues/187","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null},{"id":"GITHUB_TEAMSERI0US_POCS","name":"Pocs","source":"github","url":"https://github.com/TeamSeri0us/pocs/blob/master/exiv2/2-out-of-read-Poc","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":2,"weaknesses":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer","description":"The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/119.html"}],"affected":[{"vendor":"debian","product":"exiv2","name":"exiv2","label":"exiv2","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/exiv2","purlType":"deb","versions":[{"text":"< 0.27.2-6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.27.2-6","eol":null,"hubHref":null},{"vendor":"debian","product":"debian_linux","name":"debian linux","label":"debian_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"8.0","noFixRecorded":false,"fixedIn":null},{"text":"10.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"8.0 | 10.0","eol":{"isEol":true,"eolDate":"2020-06-30T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"8","label":"8 (Jessie)","eolFrom":"2020-06-30T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":"8.11"},"product":{"name":"debian","label":"Debian","category":"os"}},"hubHref":"/vendor/debian/debian_linux"},{"vendor":"exiv2","product":"exiv2","name":"exiv2","label":"exiv2","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"0.27:rc3","noFixRecorded":false,"fixedIn":null}],"versionsText":"0.27:rc3","eol":null,"hubHref":"/vendor/exiv2/exiv2"},{"vendor":"fedoraproject","product":"fedora","name":"fedora","label":"fedora","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"30","noFixRecorded":false,"fixedIn":null}],"versionsText":"30","eol":{"isEol":true,"eolDate":"2020-05-26T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"30","label":"30","eolFrom":"2020-05-26T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"fedora","label":"Fedora Linux","category":"os"}},"hubHref":"/vendor/fedoraproject/fedora"},{"vendor":"PyPI","product":"exiv2","name":"exiv2","label":"exiv2","ecosystem":"PyPI","cpePart":null,"purl":"pkg:pypi/exiv2","purlType":"pypi","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"redhat","product":"enterprise_linux_dekstop","name":"enterprise linux dekstop","label":"enterprise_linux_dekstop","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"7.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"7.0","eol":null,"hubHref":"/vendor/redhat/enterprise_linux_dekstop"},{"vendor":"redhat","product":"enterprise_linux_server","name":"enterprise linux server","label":"enterprise_linux_server","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"7.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"7.0","eol":null,"hubHref":"/vendor/redhat/enterprise_linux_server"},{"vendor":"redhat","product":"enterprise_linux_workstation","name":"enterprise linux workstation","label":"enterprise_linux_workstation","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"7.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"7.0","eol":null,"hubHref":"/vendor/redhat/enterprise_linux_workstation"}],"affectedCount":8,"eol":{"hasEol":true,"count":2},"references":[{"url":"https://lists.debian.org/debian-lts-announce/2019/02/msg00038.html","label":"lists.debian.org/debian-lts-announce/2019/02/msg00038.html","hostname":"lists.debian.org","tags":["Mailing List","Third Party Advisory","WEB"]},{"url":"https://github.com/Exiv2/exiv2/issues/590","label":"github.com/Exiv2/exiv2/issues/590","hostname":"github.com","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory","FIX"]},{"url":"https://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206","label":"github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206","hostname":"github.com","tags":["Exploit","Third Party Advisory","WEB"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","WEB"]},{"url":"https://access.redhat.com/errata/RHSA-2019:2101","label":"access.redhat.com/errata/RHSA-2019:2101","hostname":"access.redhat.com","tags":["Vendor Advisory","Third Party Advisory","Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html","label":"lists.debian.org/debian-lts-announce/2023/01/msg00004.html","hostname":"lists.debian.org","tags":["Mailing List","Third Party Advisory","WEB"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-20097","label":"security-tracker.debian.org/tracker/CVE-2018-20097","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DLA-1691-1","DLA-3265-1","RHSA-2019:2101","RHSA-2020:1577","SUSE-SU-2022:4208-1","SUSE-SU-2022:4252-1","SUSE-SU-2022:4276-1"],"duplicates":[],"related":["SUSE-SU-2022:4208-1","SUSE-SU-2022:4252-1","SUSE-SU-2022:4276-1"]},"timeline":[{"kind":"published","date":"2018-12-12T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T11:51:18.966Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":36,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T13:12:51.062Z","stale":false,"partial":false}}