module: github.com/pion/dtls
versions:
  - fixed: v1.5.2
description: |
  Due to improper verification of packets, unencrypted packets containing
  application data are accepted after the initial handshake. This allows
  an attacker to inject arbitary data which the client/server believes
  was encrypted, despite not knowing the session key.
published: 2021-04-14T12:00:00Z
cve: CVE-2019-20786
symbols:
  - Conn.handleIncomingPacket
links:
  pr: https://github.com/pion/dtls/pull/128
  commit: https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0
  context:
    - https://www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf