CVE-2025-49140

Pion Interceptor's improper RTP padding handling allows remote crash for SFU users (DoS)

Description

### Impact
Pion Interceptor versions v0.1.36 through v0.1.38 contain a bug in a RTP packet factory that can be exploited to trigger a panic with Pion based SFU via crafted RTP packets, This only affect users that use pion/interceptor.

‍
### Patches

Upgrade to v0.1.39 or later, which includes PR [#338](https://github.com/pion/interceptor/pull/338) which validates that: `padLen > 0 && padLen packetLen – headerLen)
```

before passing it to Pion’s packet factories.

### References
Commit fixing the bug: https://github.com/pion/interceptor/commit/fa5b35ea867389cec33a9c82fffbd459ca8958e5
Pull request: https://github.com/pion/interceptor/pull/338
Issue: https://github.com/pion/webrtc/issues/3148

Patch Available

Fix available through Seal Security. No upgrade required, protect your application instantly.

Fix without upgrading

Vulnerability Details

Score

7.5

Score Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Versions

github.com/pion/interceptor >= 0.1.36 < 0.1.39

Severity

High

Ecosystem

Publish Date

June 9, 2025

Modified Date

June 10, 2025