{"id":"CVE-2021-39926","details":"Buffer overflow in the Bluetooth HCI_ISO dissector in Wireshark 3.4.0 to 3.4.9 allows denial of service via packet injection or crafted capture file","modified":"2026-07-07T08:50:22.417727523Z","published":"2021-11-19T17:15:08.620Z","related":["SUSE-SU-2021:3938-1","openSUSE-SU-2021:1566-1","openSUSE-SU-2021:3938-1","openSUSE-SU-2024:11641-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"10.0"},{"last_affected":"10.0"},{"introduced":"11.0"},{"last_affected":"11.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"},{"vendor_product":"fedoraproject:fedora","cpes":["cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"34"},{"last_affected":"34"},{"introduced":"35"},{"last_affected":"35"}],"source":"CPE_STRING"}]},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/"},{"type":"ADVISORY","url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39926.json"},{"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-2021-08.html"},{"type":"FIX","url":"https://gitlab.com/wireshark/wireshark/-/issues/17649"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wireshark/wireshark","events":[{"introduced":"9733f173ea5e6255e8da208ef183210aa264d948"},{"last_affected":"365e236f5efec8d00c840f68b0529e31e9b74a36"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.4.0"},{"last_affected":"3.4.9"}]}}],"versions":["wireshark-3.4.9","v3.4.9","v3.4.9rc0","wireshark-3.4.8","v3.4.8","v3.4.8rc0","wireshark-3.4.7","v3.4.7","v3.4.7rc0","wireshark-3.4.6","v3.4.6","v3.4.6rc0","wireshark-3.4.5","v3.4.5","v3.4.5rc0","wireshark-3.4.4","v3.4.4","v3.4.4rc0","wireshark-3.4.3","v3.4.3","v3.4.3rc0","wireshark-3.4.2","v3.4.2","v3.4.2rc0","wireshark-3.4.1","v3.4.1","v3.4.1rc0","wireshark-3.4.0","v3.4.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-39926.json"}},{"ranges":[{"type":"GIT","repo":"https://gitlab.com/wireshark/wireshark","events":[{"introduced":"9733f173ea5e6255e8da208ef183210aa264d948"},{"last_affected":"365e236f5efec8d00c840f68b0529e31e9b74a36"}],"database_specific":{"cpe":"cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.4.0"},{"last_affected":"3.4.9"}],"source":"CPE_RANGE"}}],"versions":["wireshark-3.4.9","v3.4.9","v3.4.9rc0","wireshark-3.4.8","v3.4.8","v3.4.8rc0","wireshark-3.4.7","v3.4.7","v3.4.7rc0","wireshark-3.4.6","v3.4.6","v3.4.6rc0","wireshark-3.4.5","v3.4.5","v3.4.5rc0","wireshark-3.4.4","v3.4.4","v3.4.4rc0","wireshark-3.4.3","v3.4.3","v3.4.3rc0","wireshark-3.4.2","v3.4.2","v3.4.2rc0","wireshark-3.4.1","v3.4.1","v3.4.1rc0","wireshark-3.4.0","v3.4.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-39926.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}