{"id":"UBUNTU-CVE-2021-4181","details":"Crash in the Sysdig Event dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file","modified":"2025-07-16T07:55:46.583493Z","published":"2021-12-30T22:15:00Z","withdrawn":"2025-07-18T16:46:34Z","upstream":["CVE-2021-4181"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4181"},{"type":"REPORT","url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4181.json"},{"type":"REPORT","url":"https://www.wireshark.org/security/wnpa-sec-2021-21.html"},{"type":"REPORT","url":"https://gitlab.com/wireshark/wireshark/-/merge_requests/5429"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-4181"}],"affected":[{"package":{"name":"wireshark","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/wireshark@2.6.10-1~ubuntu18.04.0?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.10-1~ubuntu18.04.0"}]}],"versions":["2.4.2-1","2.4.3-1","2.4.4-1","2.4.5-1","2.6.3-1~ubuntu18.04.1","2.6.4-2~ubuntu18.04.0","2.6.5-1~ubuntu18.04.0","2.6.6-1~ubuntu18.04.0","2.6.8-1~ubuntu18.04.0"],"ecosystem_specific":{"binaries":[{"binary_name":"libwireshark-data","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwireshark-dev","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwireshark11","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwireshark11-dbgsym","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwiretap-dev","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwiretap8","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwiretap8-dbgsym","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwscodecs2","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwscodecs2-dbgsym","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwsutil-dev","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwsutil9","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"libwsutil9-dbgsym","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"tshark","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"tshark-dbgsym","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"wireshark","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"wireshark-common","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"wireshark-common-dbgsym","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"wireshark-dev","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"wireshark-doc","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"wireshark-gtk","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"wireshark-gtk-dbgsym","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"wireshark-qt","binary_version":"2.6.10-1~ubuntu18.04.0"},{"binary_name":"wireshark-qt-dbgsym","binary_version":"2.6.10-1~ubuntu18.04.0"}],"availability":"No 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