{"id":"UBUNTU-CVE-2021-4183","details":"Crash in the pcapng file parser in Wireshark 3.6.0 allows denial of service via crafted capture file","modified":"2026-04-22T13:01:08.080060Z","published":"2021-12-30T22:15:00Z","upstream":["CVE-2021-4183"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4183"},{"type":"REPORT","url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4183.json"},{"type":"REPORT","url":"https://www.wireshark.org/security/wnpa-sec-2021-19.html"},{"type":"REPORT","url":"https://gitlab.com/wireshark/wireshark/-/issues/17755"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-4183"}],"affected":[{"package":{"name":"wireshark","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/wireshark@2.6.10-1~ubuntu14.04.0~esm3?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.10.2-1","1.10.3-1","1.10.5-1ubuntu1","1.10.5-2","1.10.6-1","1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1","2.6.3-1~ubuntu14.04.1","2.6.4-2~ubuntu14.04.1","2.6.5-1~ubuntu14.04.1","2.6.6-1~ubuntu14.04.0","2.6.8-1~ubuntu14.04.0~esm1","2.6.10-1~ubuntu14.04.0~esm1","2.6.10-1~ubuntu14.04.0~esm2","2.6.10-1~ubuntu14.04.0~esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"libwireshark-data","binary_version":"2.6.10-1~ubuntu14.04.0~esm3"},{"binary_name":"libwireshark11","binary_version":"2.6.10-1~ubuntu14.04.0~esm3"},{"binary_name":"libwiretap8","binary_version":"2.6.10-1~ubuntu14.04.0~esm3"},{"binary_name":"libwscodecs2","binary_version":"2.6.10-1~ubuntu14.04.0~esm3"},{"binary_name":"libwsutil9","binary_version":"2.6.10-1~ubuntu14.04.0~esm3"},{"binary_name":"tshark","binary_version":"2.6.10-1~ubuntu14.04.0~esm3"},{"binary_name":"wireshark","binary_version":"2.6.10-1~ubuntu14.04.0~esm3"},{"binary_name":"wireshark-common","binary_version":"2.6.10-1~ubuntu14.04.0~esm3"},{"binary_name":"wireshark-gtk","binary_version":"2.6.10-1~ubuntu14.04.0~esm3"},{"binary_version":"2.6.10-1~ubuntu14.04.0~esm3","binary_name":"wireshark-qt"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4183.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}