{"schema_version":"1.7.5","id":"CVE-2020-25866","published":"2020-10-06T15:15:15.413Z","modified":"2026-07-08T16:28:48.873399Z","related":["SUSE-SU-2020:3166-1","openSUSE-SU-2020:1878-1","openSUSE-SU-2020:1882-1","openSUSE-SU-2024:11513-1"],"details":"In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/packet-blip.c by allowing reasonable compression ratios and rejecting ZIP bombs.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wireshark/wireshark","events":[{"introduced":"937e33de60bcfcd6f68e7250e5e6914ae1d1e1e4"},{"last_affected":"643e3b0f718685b3fa7008a0c5c4707daf63ca99"},{"introduced":"e0ed4cfa3d72110257da54c26ad3a28d282ef454"},{"last_affected":"4f9257fb8ccce92b519d87c4cc905107ae09b5e9"}],"database_specific":{"cpe":"cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.0.0"},{"last_affected":"3.0.13"},{"introduced":"3.2.0"},{"last_affected":"3.2.6"}],"source":"CPE_RANGE"}}],"versions":["wireshark-3.0.13","v3.0.13","wireshark-3.2.6","v3.2.6","v3.0.13rc0","v3.2.6rc0","wireshark-3.0.12","v3.0.12","wireshark-3.2.5","v3.2.5","v3.0.12rc0","v3.2.5rc0","wireshark-3.0.11","v3.0.11","wireshark-3.2.4","v3.2.4","v3.0.11rc0","v3.2.4rc0","wireshark-3.0.10","v3.0.10","wireshark-3.2.3","v3.2.3","v3.0.10rc0","v3.2.3rc0","wireshark-3.0.9","v3.0.9","wireshark-3.2.2","v3.2.2","v3.0.9rc0","v3.2.2rc0","wireshark-3.0.8","v3.0.8","wireshark-3.2.1","v3.2.1","v3.2.1rc0","wireshark-3.2.0","v3.2.0","v3.0.8rc0","wireshark-3.0.7","v3.0.7","v3.0.7rc0","wireshark-3.0.6","v3.0.6","v3.0.6rc0","wireshark-3.0.5","v3.0.5","v3.0.5rc0","wireshark-3.0.4","v3.0.4","v3.0.4rc0","wireshark-3.0.3","v3.0.3","v3.0.3rc0","wireshark-3.0.2","v3.0.2","v3.0.2rc0","wireshark-3.0.1","v3.0.1","v3.0.1rc0","wireshark-3.0.0","v3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25866.json"}},{"ranges":[{"type":"GIT","repo":"https://gitlab.com/wireshark/wireshark","events":[{"introduced":"937e33de60bcfcd6f68e7250e5e6914ae1d1e1e4"},{"last_affected":"643e3b0f718685b3fa7008a0c5c4707daf63ca99"},{"introduced":"e0ed4cfa3d72110257da54c26ad3a28d282ef454"},{"last_affected":"4f9257fb8ccce92b519d87c4cc905107ae09b5e9"},{"fixed":"4a948427100b6c109f4ec7b4361f0d2aec5e5c3f"}],"database_specific":{"cpe":"cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.0.0"},{"last_affected":"3.0.13"},{"introduced":"3.2.0"},{"last_affected":"3.2.6"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["wireshark-3.0.13","v3.0.13","wireshark-3.2.6","v3.2.6","v3.0.13rc0","v3.2.6rc0","wireshark-3.0.12","v3.0.12","wireshark-3.2.5","v3.2.5","v3.0.12rc0","v3.2.5rc0","wireshark-3.0.11","v3.0.11","wireshark-3.2.4","v3.2.4","v3.0.11rc0","v3.2.4rc0","wireshark-3.0.10","v3.0.10","wireshark-3.2.3","v3.2.3","v3.0.10rc0","v3.2.3rc0","wireshark-3.0.9","v3.0.9","wireshark-3.2.2","v3.2.2","v3.0.9rc0","v3.2.2rc0","wireshark-3.0.8","v3.0.8","wireshark-3.2.1","v3.2.1","v3.2.1rc0","wireshark-3.2.0","v3.2.0","v3.0.8rc0","wireshark-3.0.7","v3.0.7","v3.0.7rc0","wireshark-3.0.6","v3.0.6","v3.0.6rc0","wireshark-3.0.5","v3.0.5","v3.0.5rc0","wireshark-3.0.4","v3.0.4","v3.0.4rc0","wireshark-3.0.3","v3.0.3","v3.0.3rc0","wireshark-3.0.2","v3.0.2","v3.0.2rc0","wireshark-3.0.1","v3.0.1","v3.0.1rc0","wireshark-3.0.0","v3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25866.json","vanir_signatures":[{"deprecated":false,"digest":{"function_hash":"50767432719429089269085565985219058360","length":2688},"id":"CVE-2020-25866-6d7caca0","signature_type":"Function","signature_version":"v1","source":"https://gitlab.com/wireshark/wireshark@4a948427100b6c109f4ec7b4361f0d2aec5e5c3f","target":{"file":"epan/dissectors/packet-blip.c","function":"dissect_blip"}},{"deprecated":false,"digest":{"function_hash":"268296834440097921298733415759126661212","length":1196},"id":"CVE-2020-25866-d45c5b3a","signature_type":"Function","signature_version":"v1","source":"https://gitlab.com/wireshark/wireshark@4a948427100b6c109f4ec7b4361f0d2aec5e5c3f","target":{"file":"epan/dissectors/packet-blip.c","function":"proto_register_blip"}},{"deprecated":false,"digest":{"function_hash":"42428474322532422323406658849635530022","length":1562},"id":"CVE-2020-25866-e0730287","signature_type":"Function","signature_version":"v1","source":"https://gitlab.com/wireshark/wireshark@4a948427100b6c109f4ec7b4361f0d2aec5e5c3f","target":{"file":"epan/dissectors/packet-blip.c","function":"decompress"}},{"deprecated":false,"digest":{"line_hashes":["231457119782423097333262304500154648398","89707701405970446106737834544274489479","274676446702317858184502607527688661770","337578530301425042605140723422781108003","94270442880728988200009589483509167415","178805019552179363728417786297999176910","141179626053474188331333582282551237191","173662981700678896840995837528331157958","138865619586795132684424639683189601976","11409611191344910515700795087640139094","69403195685994832883061886230825378885","156169860743477273915472800076120104623","219849491493513207790323818439742142417","217619904693307142962313629875135737357","220507903264787080702728961496908670126","288734326509726903113638476353719696280","338645410577665506361249544897178690953","246243351203548783920782033625470625781","312827323945583003851165254904168456073","7912469597897797574208662846804893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