CVE-2022-29189 MEDIUM

CVE-2022-29189: Buffer for inbound DTLS fragments has no limit

Vendor Pion
Product dtls
Weakness CWE-120
Published May 20, 2022
Last update April 23, 2025

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

Pion DTLS is a Go implementation of Datagram Transport Layer Security. Prior to version 2.1.4, a buffer that was used for inbound network traffic had no upper limit. Pion DTLS would buffer all network traffic from the remote user until the handshake completes or timed out. An attacker could exploit this to cause excessive memory usage. Version 2.1.4 contains a patch for this issue. There are currently no known workarounds available.

Key dates

02Disclosure timeline

May 20, 2022 CVE published
April 23, 2025 Record updated