{"schemaVersion":3,"id":"CVE-2020-27844","aliases":["ALPINE-CVE-2020-27844","MGASA-2021-0093","UBUNTU-CVE-2020-27844"],"status":"published","duplicateOf":null,"title":null,"description":"A flaw was found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0. This flaw allows an attacker to provide crafted input to openjpeg during conversion and encoding, causing an out-of-bounds write. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.","dates":{"published":"2021-01-05T17:43:49.000Z","modified":"2024-08-04T16:25:43.677Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.3,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Alpine","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":4.6,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":4.6,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":8.3,"severity":"high","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01394,"percentile":0.71992,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.017,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.01377},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01394,"percentile":0.71992}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01377,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01394,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01394,"percentile":0.71992}]},"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":[],"exploitCount":0,"weaknesses":[{"id":"CWE-20","name":"Improper Input Validation","description":"The product receives input or data, but it does\n        not validate or incorrectly validates that the input has the\n        properties that are required to process the data safely and\n        correctly.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/20.html"}],"affected":[{"vendor":"alpine","product":"openjpeg","name":"openjpeg","label":"openjpeg","ecosystem":"Alpine Linux","cpePart":null,"purl":"pkg:apk/alpine/openjpeg","purlType":"apk","versions":[{"text":"< 2.4.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.0-r0","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"insighttoolkit4","name":"insighttoolkit4","label":"insighttoolkit4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/insighttoolkit4","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","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":"9.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"9.0","eol":{"isEol":true,"eolDate":"2022-07-01T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"9","label":"9 (Stretch)","eolFrom":"2022-07-01T00:00:00.000Z","isLts":false,"isMaintained":true,"latestVersion":"9.13"},"product":{"name":"debian","label":"Debian","category":"os"}},"hubHref":"/vendor/debian/debian_linux"},{"vendor":"mageia","product":"openjpeg2","name":"openjpeg2","label":"openjpeg2","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/openjpeg2","purlType":"rpm","versions":[{"text":"< 2.4.0-1.mga7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.0-1.mga7","eol":null,"hubHref":null},{"vendor":"oracle","product":"outside_in_technology","name":"outside in technology","label":"outside_in_technology","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"8.5.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"8.5.5","eol":null,"hubHref":"/vendor/oracle/outside_in_technology"},{"vendor":"uclouvain","product":"openjpeg","name":"openjpeg","label":"openjpeg","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2.4.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.0","eol":null,"hubHref":"/vendor/uclouvain/openjpeg"}],"affectedCount":6,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1907521","label":"bugzilla.redhat.com/show_bug.cgi?id=1907521","hostname":"bugzilla.redhat.com","tags":["X Refsource MISC","Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/202101-29","label":"security.gentoo.org/glsa/202101-29","hostname":"security.gentoo.org","tags":["Vendor Advisory","X Refsource GENTOO","Third Party Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00011.html","label":"lists.debian.org/debian-lts-announce/2021/02/msg00011.html","hostname":"lists.debian.org","tags":["Mailing List","X Refsource MLIST","Third Party Advisory"]},{"url":"https://www.oracle.com/security-alerts/cpuApr2021.html","label":"www.oracle.com/security-alerts/cpuApr2021.html","hostname":"www.oracle.com","tags":["X Refsource MISC","Patch","Third Party Advisory"]},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","label":"www.oracle.com//security-alerts/cpujul2021.html","hostname":"www.oracle.com","tags":["X Refsource MISC","Patch","Third Party Advisory"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2020-27844","label":"security.alpinelinux.org/vuln/CVE-2020-27844","hostname":"security.alpinelinux.org","tags":["Advisory"]},{"url":"https://advisories.mageia.org/MGASA-2021-0093.html","label":"advisories.mageia.org/MGASA-2021-0093.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=27986","label":"bugs.mageia.org/show_bug.cgi?id=27986","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://www.debian.org/lts/security/2021/dla-2550","label":"www.debian.org/lts/security/2021/dla-2550","hostname":"www.debian.org","tags":["WEB"]},{"url":"https://ubuntu.com/security/CVE-2020-27844","label":"ubuntu.com/security/CVE-2020-27844","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://github.com/uclouvain/openjpeg/issues/1299","label":"github.com/uclouvain/openjpeg/issues/1299","hostname":"github.com","tags":["REPORT"]},{"url":"https://github.com/uclouvain/openjpeg/commit/73fdf28342e4594019af26eb6a347a34eceb6296","label":"github.com/uclouvain/openjpeg/commit/73fdf28342e4594019af26eb6a347a34eceb6296","hostname":"github.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-27844","label":"www.cve.org/CVERecord?id=CVE-2020-27844","hostname":"www.cve.org","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":["MGASA-2021-0142","OPENSUSE-SU-2021:0392-1","OPENSUSE-SU-2021:0401-1","OPENSUSE-SU-2024:10681-1","OPENSUSE-SU-2024:12948-1"],"duplicates":[],"related":["OPENSUSE-SU-2021:0392-1","OPENSUSE-SU-2021:0401-1","OPENSUSE-SU-2024:10681-1","OPENSUSE-SU-2024:12948-1"]},"timeline":[{"kind":"published","date":"2021-01-05T17:43:49.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T16:25:43.677Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":33,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T06:34:00.203Z","stale":false,"partial":false}}