{"id":"CVE-2021-39922","details":"Buffer overflow in the C12.22 dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file","modified":"2026-04-02T07:33:46.436453Z","published":"2021-11-19T17:15:08.400Z","related":["MGASA-2021-0518","SUSE-SU-2021:3938-1","openSUSE-SU-2021:1566-1","openSUSE-SU-2021:3938-1","openSUSE-SU-2024:11641-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202210-04"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-5019"},{"type":"ADVISORY","url":"https://www.wireshark.org/security/wnpa-sec-2021-12.html"},{"type":"ADVISORY","url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39922.json"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html"},{"type":"FIX","url":"https://gitlab.com/wireshark/wireshark/-/issues/17636"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wireshark/wireshark","events":[{"introduced":"e0ed4cfa3d72110257da54c26ad3a28d282ef454"},{"last_affected":"f73d1bc180e75084e7f599d86007f0f31123db19"},{"introduced":"9733f173ea5e6255e8da208ef183210aa264d948"},{"last_affected":"365e236f5efec8d00c840f68b0529e31e9b74a36"}],"database_specific":{"versions":[{"introduced":"3.2.0"},{"last_affected":"3.2.17"},{"introduced":"3.4.0"},{"last_affected":"3.4.9"}]}}],"versions":["v3.2.0","v3.2.1","v3.2.10","v3.2.10rc0","v3.2.11","v3.2.11rc0","v3.2.12","v3.2.12rc0","v3.2.13","v3.2.13rc0","v3.2.14","v3.2.14rc0","v3.2.15","v3.2.15rc0","v3.2.16","v3.2.16rc0","v3.2.17","v3.2.17rc0","v3.2.1rc0","v3.2.2","v3.2.2rc0","v3.2.3","v3.2.3rc0","v3.2.4","v3.2.4rc0","v3.2.5","v3.2.5rc0","v3.2.6","v3.2.6rc0","v3.2.7","v3.2.7rc0","v3.2.8","v3.2.8rc0","v3.2.9","v3.2.9rc0","v3.4.0","v3.4.1","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-3.2.0","wireshark-3.2.1","wireshark-3.2.10","wireshark-3.2.11","wireshark-3.2.12","wireshark-3.2.13","wireshark-3.2.14","wireshark-3.2.15","wireshark-3.2.16","wireshark-3.2.17","wireshark-3.2.2","wireshark-3.2.3","wireshark-3.2.4","wireshark-3.2.5","wireshark-3.2.6","wireshark-3.2.7","wireshark-3.2.8","wireshark-3.2.9","wireshark-3.4.0","wireshark-3.4.1","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-2021-39922.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"34"}]},{"events":[{"introduced":"0"},{"last_affected":"35"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"11.0"}]}]}}],"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"}]}