{"schemaVersion":3,"id":"CVE-2021-22207","aliases":["MGASA-2021-0222","UBUNTU-CVE-2021-22207","DEBIAN-CVE-2021-22207"],"status":"published","duplicateOf":null,"title":null,"description":"Excessive memory consumption in MS-WSP dissector in Wireshark 3.4.0 to 3.4.4 and 3.2.0 to 3.2.12 allows denial of service via packet injection or crafted capture file","dates":{"published":"2021-04-23T17:32:51.000Z","modified":"2024-08-03T18:37:18.330Z","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:L/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.5,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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:L/UI:N/S:U/C:N/I:N/A:H","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.02023,"percentile":0.80675,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.02023},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02023,"percentile":0.80675}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02023,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02023,"percentile":0.80675}]},"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_ED130195956D6573","name":"Exploit Reference (gitlab.com)","source":"reference","url":"https://gitlab.com/wireshark/wireshark/-/issues/17331","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling","description":"The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/770.html"}],"affected":[{"vendor":"debian","product":"wireshark","name":"wireshark","label":"wireshark","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/wireshark","purlType":"deb","versions":[{"text":"< 3.4.7-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.4.7-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"wireshark","name":"wireshark","label":"wireshark","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/wireshark","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},{"text":"10.0","noFixRecorded":false,"fixedIn":null},{"text":"11.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"9.0 | 10.0 | 11.0","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":"fedoraproject","product":"fedora","name":"fedora","label":"fedora","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"33","noFixRecorded":false,"fixedIn":null},{"text":"34","noFixRecorded":false,"fixedIn":null}],"versionsText":"33 | 34","eol":{"isEol":true,"eolDate":"2021-11-30T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"33","label":"33","eolFrom":"2021-11-30T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"fedora","label":"Fedora Linux","category":"os"}},"hubHref":"/vendor/fedoraproject/fedora"},{"vendor":"mageia","product":"wireshark","name":"wireshark","label":"wireshark","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/wireshark","purlType":"rpm","versions":[{"text":"< 3.4.5-1.mga8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.4.5-1.mga8","eol":null,"hubHref":null},{"vendor":"oracle","product":"zfs_storage_appliance_kit","name":"zfs storage appliance kit","label":"zfs_storage_appliance_kit","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"8.8","noFixRecorded":false,"fixedIn":null}],"versionsText":"8.8","eol":null,"hubHref":"/vendor/oracle/zfs_storage_appliance_kit"},{"vendor":"the wireshark foundation","product":"wireshark","name":"Wireshark","label":"wireshark","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 3.4.0, < 3.4.5","noFixRecorded":false,"fixedIn":null},{"text":"≥ 3.2.0, < 3.2.13","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 3.4.0, < 3.4.5 | ≥ 3.2.0, < 3.2.13","eol":null,"hubHref":"/vendor/the_wireshark_foundation/wireshark"},{"vendor":"wireshark","product":"wireshark","name":"wireshark","label":"wireshark","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 3.2.0, ≤ 3.2.12","noFixRecorded":false,"fixedIn":null},{"text":"≥ 3.4.0, ≤ 3.4.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 3.2.0, ≤ 3.2.12 | ≥ 3.4.0, ≤ 3.4.4","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"wireshark","label":"Wireshark","category":"app"}},"hubHref":"/vendor/wireshark/wireshark"}],"affectedCount":8,"eol":{"hasEol":true,"count":2},"references":[{"url":"https://www.wireshark.org/security/wnpa-sec-2021-04.html","label":"www.wireshark.org/security/wnpa-sec-2021-04.html","hostname":"www.wireshark.org","tags":["X Refsource MISC","REPORT","Vendor Advisory"]},{"url":"https://gitlab.com/wireshark/wireshark/-/issues/17331","label":"gitlab.com/wireshark/wireshark/-/issues/17331","hostname":"gitlab.com","tags":["X Refsource MISC","REPORT","Exploit","Third Party Advisory"]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22207.json","label":"gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22207.json","hostname":"gitlab.com","tags":["X Refsource CONFIRM","REPORT","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NL7ZTMMWIEPHHFK3ONRKATWE7CLIGLFD/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","X Refsource FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GIWWO27HV4HUKXV6NH6ULHCRAQB26DMD/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","X Refsource FEDORA"]},{"url":"https://security.gentoo.org/glsa/202107-21","label":"security.gentoo.org/glsa/202107-21","hostname":"security.gentoo.org","tags":["Vendor Advisory","X Refsource GENTOO","Third Party Advisory"]},{"url":"https://www.oracle.com/security-alerts/cpuoct2021.html","label":"www.oracle.com/security-alerts/cpuoct2021.html","hostname":"www.oracle.com","tags":["X Refsource MISC","Patch","Third Party Advisory"]},{"url":"https://www.debian.org/security/2021/dsa-5019","label":"www.debian.org/security/2021/dsa-5019","hostname":"www.debian.org","tags":["Vendor Advisory","X Refsource DEBIAN","Third Party Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html","label":"lists.debian.org/debian-lts-announce/2021/12/msg00015.html","hostname":"lists.debian.org","tags":["Mailing List","X Refsource MLIST","Third Party Advisory"]},{"url":"https://advisories.mageia.org/MGASA-2021-0222.html","label":"advisories.mageia.org/MGASA-2021-0222.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=28915","label":"bugs.mageia.org/show_bug.cgi?id=28915","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://www.wireshark.org/security/wnpa-sec-2021-04","label":"www.wireshark.org/security/wnpa-sec-2021-04","hostname":"www.wireshark.org","tags":["WEB"]},{"url":"https://www.wireshark.org/docs/relnotes/wireshark-3.4.5.html","label":"www.wireshark.org/docs/relnotes/wireshark-3.4.5.html","hostname":"www.wireshark.org","tags":["WEB"]},{"url":"https://www.wireshark.org/news/20210421.html","label":"www.wireshark.org/news/20210421.html","hostname":"www.wireshark.org","tags":["WEB"]},{"url":"https://ubuntu.com/security/CVE-2021-22207","label":"ubuntu.com/security/CVE-2021-22207","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-22207","label":"www.cve.org/CVERecord?id=CVE-2021-22207","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-22207","label":"security-tracker.debian.org/tracker/CVE-2021-22207","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22207","label":"nvd.nist.gov/vuln/detail/CVE-2021-22207","hostname":"nvd.nist.gov","tags":["Oval","Advisory"]}],"lineage":{"upstream":[],"downstream":["DLA-2849-1","DSA-5019-1","OPENSUSE-SU-2021:0909-1","OPENSUSE-SU-2021:2125-1","OPENSUSE-SU-2024:11513-1","SUSE-SU-2021:2125-1"],"duplicates":[],"related":["OPENSUSE-SU-2021:0909-1","OPENSUSE-SU-2021:2125-1","OPENSUSE-SU-2024:11513-1","SUSE-SU-2021:2125-1"]},"timeline":[{"kind":"published","date":"2021-04-23T17:32:51.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-03T18:37:18.330Z","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":"2026-10-19T21:11:05.642Z","stale":false,"partial":false}}