{"id":"CVE-2021-4190","aliases":["AZL-9100","CLSA-2026-1777370059","DEBIAN-CVE-2021-4190","DLA-3906-1","EUVD-2021-34050","GHSA-pmc4-9968-jrp7","MGASA-2022-0068","SUSE-SU-2022:0375-1","UBUNTU-CVE-2021-4190","openSUSE-SU-2022:0375-1","openSUSE-SU-2024:11707-1"],"status":"published","title":"Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet...","description":"Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.03332,"percentile":0.88731,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-772","CWE-834"],"published":"2021-12-30T00:00:00Z","modified":"2026-10-24T10:50:25Z","fixes":[{"ecosystem":"Azure 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Advisory","advisory","report"]},{"url":"https://gitlab.com/wireshark/wireshark/-/issues/17811","tags":["x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix","report"]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4190.json","tags":["x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/","tags":["vendor-advisory","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/","tags":["vendor-advisory","x_transferred","web"]},{"url":"https://security.gentoo.org/glsa/202210-04","tags":["vendor-advisory","x_transferred","Third Party 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loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file","status":"published","published":"2021-12-30T00:00:00Z","modified":"2025-11-03T21:45:24.052Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-34050","description":"Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file","status":"published","published":"2021-12-30T00:00:00Z","modified":"2025-11-03T21:45:24Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T19:49:31.7352Z"}],"ghsa":[{"id":"GHSA-pmc4-9968-jrp7","title":"Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet...","description":"Large loop in the Kafka dissector in Wireshark 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file","status":"published","published":"2021-12-30T22:15:10.477Z","modified":"2026-06-17T04:19:11.307Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-834"],"updated_at":"2026-11-02T14:07:02.977492Z"}],"osv":[{"id":"AZL-9100","title":"CVE-2021-4190 affecting package wireshark for versions less than 3.4.14-1","description":"Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file","status":"published","published":"2021-12-30T22:15:10Z","modified":"2026-04-21T04:34:58.691655Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:11.397546Z"},{"id":"CVE-2021-4190","description":"Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file","status":"published","published":"2021-12-30T22:15:10.477Z","modified":"2026-10-24T10:50:25.782991632Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:21.557945Z"},{"id":"DEBIAN-CVE-2021-4190","description":"Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file","status":"published","published":"2021-12-30T22:15:10.477Z","modified":"2026-10-23T18:02:30.289835046Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:35.799676Z"},{"id":"UBUNTU-CVE-2021-4190","description":"Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file","status":"withdrawn","published":"2021-12-30T22:15:00Z","modified":"2025-07-16T08:15:56.638709Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:29.220315Z"},{"id":"CLSA-2026-1777370059","title":"wireshark: Fix of 7 CVEs","description":"- CVE-2021-4181: sysdig event dissector SIGSEGV fix\n- CVE-2021-4182: rfc7468 file parser infinite loop fix\n- CVE-2021-4184: bt-dht endless loop fix\n- CVE-2021-4186: gryphon NULL pkt_info dereference fix\n- CVE-2021-4190: kafka dissector varint strictness fix\n- CVE-2022-0581: cms dissector globals-scoping fix\n- CVE-2022-0583: pvfs2 heap overflow OOB read fix","status":"published","published":"2026-04-28T09:54:23Z","modified":"2026-06-01T00:32:28.091255767Z","updated_at":"2026-11-02T15:43:44.384419Z"},{"id":"DLA-3906-1","title":"wireshark - security update","status":"published","published":"2024-09-30T00:00:00Z","modified":"2026-03-09T02:11:11.067392Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"MGASA-2022-0068","title":"Updated wireshark packages fix security vulnerability","description":"Kafka dissector infinite loop (CVE-2021-4190).\n\nRTMPT dissector infinite loop (wnpa-sec-2022-01).\n\nLarge loops in multiple dissectors (wnpa-sec-2022-02).\n\nPVFS dissector crash (wnpa-sec-2022-03).\n\nCSN.1 dissector crash (wnpa-sec-2022-04).\n\nCMS dissector crash (wnpa-sec-2022-05).\n","status":"published","published":"2022-02-18T00:14:24Z","modified":"2026-04-16T04:42:24.102627719Z","updated_at":"2026-11-02T15:49:41.849028Z"},{"id":"openSUSE-SU-2022:0375-1","title":"Security update for wireshark","description":"This update for wireshark fixes the following issues:\n\nUpdate to version 3.6.1: \n\n- CVE-2021-4185: RTMPT dissector infinite loop (bsc#1194166)\n- CVE-2021-4184: BitTorrent DHT dissector infinite loop (bsc#1194167)\n- CVE-2021-4183: pcapng file parser crash (bsc#1194168)\n- CVE-2021-4182: RFC 7468 file parser infinite loop (bsc#1194169)\n- CVE-2021-4181: Sysdig Event dissector crash (bsc#1194170)\n- CVE-2021-4190: Kafka dissector infinite loop (bsc#1194171)\n- Support for Shared Memory Communications (SMC) (jsc#SLE-18727)\n","status":"published","published":"2022-02-14T10:13:07Z","modified":"2026-02-04T03:10:45.819263Z","updated_at":"2026-11-02T16:58:32.653274Z"},{"id":"openSUSE-SU-2024:11707-1","title":"libwireshark15-3.6.1-2.1 on GA media","description":"These are all security issues fixed in the libwireshark15-3.6.1-2.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:14:34.045257Z","updated_at":"2026-11-02T16:58:35.195147Z"},{"id":"SUSE-SU-2022:0375-1","title":"Security update for wireshark","description":"This update for wireshark fixes the following issues:\n\nUpdate to version 3.6.1: \n\n- CVE-2021-4185: RTMPT dissector infinite loop (bsc#1194166)\n- CVE-2021-4184: BitTorrent DHT dissector infinite loop (bsc#1194167)\n- CVE-2021-4183: pcapng file parser crash (bsc#1194168)\n- CVE-2021-4182: RFC 7468 file parser infinite loop (bsc#1194169)\n- CVE-2021-4181: Sysdig Event dissector crash (bsc#1194170)\n- CVE-2021-4190: Kafka dissector infinite loop (bsc#1194171)\n- Support for Shared Memory Communications (SMC) (jsc#SLE-18727)\n","status":"published","published":"2022-02-14T10:14:21Z","modified":"2026-02-04T04:08:13.056822Z","updated_at":"2026-11-02T15:53:50.066806Z"}]}}