CVE-2019-20786

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Published Apr 19, 2020 CVSS 3.1 · 9.8 Critical EPSS 3.0% KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:pion:dtls:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-1278	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.
Github GHSA	GHSA-7gfg-6934-mqq2	Improper Authenication in Pion DTLS

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 3.0% (3.012% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
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

History

No history.

Subscriptions

Pion Dtls

Weaknesses

CWE-287

Sources

CVE record Updated: Aug 5, 2024, 2:53 AM

Status: PUBLISHED
Assigner: mitre
Published: Apr 19, 2020, 7:57 PM
Updated: Aug 5, 2024, 2:53 AM
Reserved: Apr 19, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 2:31 AM

Status: Modified
Published: Apr 19, 2020, 8:15 PM
Modified: Jun 17, 2026, 2:31 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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