CVE-2022-29189
Buffer for inbound DTLS fragments has no limit
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Timeline
ID reserved
By GitHub_M
- 37 days later
· 37 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVDNVD · Modified | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/pion/dtlsGHSA-cx94-mrg9-rq4j (opens in a new tab)
- Gogithub.com/pion/dtls/v2GHSA-cx94-mrg9-rq4j (opens in a new tab)
References (3)
- https://github.com/pion/dtls/releases/tag/v2.1.4 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/pion/dtls/security/advisories/GHSA-cx94-mrg9-rq4j (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/pion/dtls/commit/a6397ff7282bc56dc37a68ea9211702edb4de1de (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-cx94-mrg9-rq4j (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-29189)Record last updated .