GHSA-hxp2-xqf3-v83h
Panic during unmarshal of Hello Verify Request in github.com/pion/dtls/v2
Impact
When attempting to unmarshal a Server Hello request we could attempt to unmarshal into a buffer that was too small. This could result in a panic leading the program to crash.
This issue could be abused to cause a denial of service.
Workaround
None
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
What each source reports
GitHub Advisories Score used
Panic during unmarshal of Hello Verify Request in github.com/pion/dtls/v2
Impact
When attempting to unmarshal a Server Hello request we could attempt to unmarshal into a buffer that was too small. This could result in a panic leading the program to crash.
This issue could be abused to cause a denial of service.
Workaround
None
- Record
GHSA-hxp2-xqf3-v83h- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
Panic during unmarshal of Hello Verify Request in github.com/pion/dtls/v2
Impact
When attempting to unmarshal a Server Hello request we could attempt to unmarshal into a buffer that was too small. This could result in a panic leading the program to crash.
This issue could be abused to cause a denial of service.
Workaround
None
- Record
GHSA-hxp2-xqf3-v83h- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSVGO-2023-1535No score
Panic during unmarshal of Server Hello in github.com/pion/dtls/v2
Unmarshalling a Server Hello can panic, which could allow a denial of service.
- Record
GO-2023-1535- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/pion/dtls/v2Go | before 2.2.4 | 2.2.4 |
github.com/pion/dtlsGo | through 1.5.4 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-hxp2-xqf3-v83h is a medium vulnerability (CVSS 5.9) in github.com/pion/dtls/v2, published February 7, 2023. No source lists public exploit code. Fixed in github.com/pion/dtls/v2 2.2.4.