{"id":"CVE-2021-4186","details":"Crash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file","modified":"2026-04-16T04:32:56.069481228Z","published":"2021-12-30T22:15:10.420Z","related":["SUSE-SU-2022:3309-1","openSUSE-SU-2024:12329-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/09/msg00049.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202210-04"},{"type":"ADVISORY","url":"https://www.wireshark.org/security/wnpa-sec-2021-16.html"},{"type":"ADVISORY","url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4186.json"},{"type":"REPORT","url":"https://gitlab.com/wireshark/wireshark/-/issues/17737"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wireshark/wireshark","events":[{"introduced":"9733f173ea5e6255e8da208ef183210aa264d948"},{"last_affected":"733b3a137c2ba8c8e517e5fb37bcc3030a43d603"}],"database_specific":{"versions":[{"introduced":"3.4.0"},{"last_affected":"3.4.10"}]}}],"versions":["v3.4.0","v3.4.1","v3.4.10","v3.4.10rc0","v3.4.1rc0","v3.4.2","v3.4.2rc0","v3.4.3","v3.4.3rc0","v3.4.4","v3.4.4rc0","v3.4.5","v3.4.5rc0","v3.4.6","v3.4.6rc0","v3.4.7","v3.4.7rc0","v3.4.8","v3.4.8rc0","v3.4.9","v3.4.9rc0","wireshark-3.4.0","wireshark-3.4.1","wireshark-3.4.10","wireshark-3.4.2","wireshark-3.4.3","wireshark-3.4.4","wireshark-3.4.5","wireshark-3.4.6","wireshark-3.4.7","wireshark-3.4.8","wireshark-3.4.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4186.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"34"}]},{"events":[{"introduced":"0"},{"last_affected":"35"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}