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Panic during unmarshal of Hello Verify Request in github.com/pion/dtls/v2

Moderate severity GitHub Reviewed Published Feb 5, 2023 in pion/dtls • Updated Jun 13, 2023

Package

gomod github.com/pion/dtls (Go)

Affected versions

<= 1.5.4

Patched versions

None
gomod github.com/pion/dtls/v2 (Go)
< 2.2.4
2.2.4

Description

Impact

During the unmarshalling of a hello verify request we could try to unmarshal into too small a buffer. is could result in a panic leading the program to crash.

This issue could be abused to cause a denial of service.

Workaround

None, upgrade to 2.2.4

References

@daenney daenney published to pion/dtls Feb 5, 2023
Published to the GitHub Advisory Database Feb 7, 2023
Reviewed Feb 7, 2023
Last updated Jun 13, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

Weaknesses

No CWEs

CVE ID

No known CVE

GHSA ID

GHSA-4xgv-j62q-h3rj

Source code

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