CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2019-20786
Critical (9.8) in pion dtls. EPSS 3.0% chance of exploitation in the next 30 days. Fixed in github.com/pion/dtls 1.5.2.
handleIncomingPacket in conn.go in Pion DTLS before 1.5.2 lacks a check for application data with epoch 0, which allows remote attackers to inject arbitrary unencrypted data after handshake completion.
Severity
- EPSS
- 3.0% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-31)
- CWE
- CWE-287
- Published
- Modified
- Record from
- the NVD, synced
Affected
- pion:dtls
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-7gfg-6934-mqq2 | Go | github.com/pion/dtls | <1.5.2 | 1.5.2 |
| GO-2020-0038 | Go | github.com/pion/dtls | <1.5.2 | 1.5.2 |
References
- https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0
- https://github.com/pion/dtls/compare/v1.5.1...v1.5.2
- https://www.usenix.org/conference/usenixsecurity20/presentation/fiterau-brostean
- https://www.usenix.org/system/files/sec20fall_fiterau-brostean_prepub.pdf
- https://github.com/pion/dtls/commit/fd73a5df2ff0e1fb6ae6a51e2777d7a16cc4f4e0