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

Quick assessment

Affected
pion dtls
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Pion DTLS是一款基于Go语言的DTLS（数据包传输层安全性协议）实现。 Pion DTLS 2.1.4之前版本存在安全漏洞，该漏洞源于入站网络流量的缓冲区没有上限。攻击者利用该漏洞导致内存使用过多。

CVSS 5.3 · Medium EPSS 2.12% · P81

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2022-29189

Vulnerability Information
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Vulnerability Title
Buffer for inbound DTLS fragments has no limit
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Pion DTLS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pion DTLS是一款基于Go语言的DTLS（数据包传输层安全性协议）实现。 Pion DTLS 2.1.4之前版本存在安全漏洞，该漏洞源于入站网络流量的缓冲区没有上限。攻击者利用该漏洞导致内存使用过多。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
pion dtls < 2.1.4 -

II. Public POCs for CVE-2022-29189

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III. Intelligence Information for CVE-2022-29189

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Patches & Fixes for CVE-2022-29189 (1)

Vendor Advisories for CVE-2022-29189 (1)

Other References for CVE-2022-29189 (1)

IV. Related Vulnerabilities

Same product: dtls
Same vendor: pion
Same weakness: CWE-120

V. Comments for CVE-2022-29189

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