Improper resource allocation - Buffer overflow In snowflake
Description
Pion/DTLS contains buffer for inbound DTLS fragments with no limit
Impact
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 times out. An attacker could exploit this to cause excessive memory usage.
Patches
Upgrade to Pion DTLS v2.1.4
Workarounds
No workarounds available, upgrade to Pion DTLS v2.1.4
References
Thank you to Juho Nurminen and the Mattermost team for discovering and reporting this.
For more information
If you have any questions or comments about this advisory:
Open an issue in Pion DTLS
Email us at [email protected]
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 debian 13 | 2.2.0-1 | ||
debian 12 | 2.2.0-1 | ||
 go | 2.1.4 | ||
debian 14 | 2.2.0-1 | ||
go | 2.1.4 |
Aliases
References