{"id":"GO-2020-0038","summary":"Improper authentication in github.com/pion/dtls","details":"Due to improper verification of packets, unencrypted packets containing application data are accepted after the initial handshake. This allows an attacker to inject arbitrary data which the client/server believes was encrypted, despite not knowing the session key.","aliases":["CVE-2019-20786","GHSA-7gfg-6934-mqq2"],"modified":"2026-03-17T04:05:33.924315Z","published":"2021-04-14T20:04:52Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2020-0038","review_status":"REVIEWED"},"references":[{"type":"FIX","url":"https://github.com/pion/dtls/pull/128"},{"type":"FIX","url":"https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0"},{"type":"WEB","url":"https://www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf"}],"affected":[{"package":{"name":"github.com/pion/dtls","ecosystem":"Go","purl":"pkg:golang/github.com/pion/dtls"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.5.2"}]}],"ecosystem_specific":{"imports":[{"path":"github.com/pion/dtls","symbols":["Client","Conn.handleIncomingPacket","Dial","Listener.Accept","Resume","Server"]}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2020-0038.json"}}],"schema_version":"1.7.5"}