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Fencer Intel
medium 5.3

CVE-2022-29189 json

Buffer for inbound DTLS fragments has no limit

published 4y ago modified 4mo ago also GHSA-cx94-mrg9-rq4j , GO-2022-0461 , EUVD-2022-3660

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/pion/dtls 2.1.4
  • go github.com/pion/dtls/v2 2.1.4
  • pion dtls 2.1.4
  • snowflake Debian 14, Debian 13, Debian 12 2.2.0-1

debian advisories DEBIAN-CVE-2022-29189

  • telegraf Ubuntu Pro 22.04 LTS 1.21.4+ds1-0ubuntu2+esm2
  • snowflake Ubuntu Pro 22.04 LTS 1.1.0-2ubuntu0.1+esm2

ubuntu advisories UBUNTU-CVE-2022-29189

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
last yr.

Exploit prediction

2.15% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem package affected fixed in
go github.com/pion/dtls
<2.1.4
2.1.4
go github.com/pion/dtls/v2
<2.1.4
2.1.4

Affected products

  • pion dtls

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.