View all vulnerabilities

CVE-2025-49140

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

### ImpactPion 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.### PatchesUpgrade to v0.1.39 or later, which includes PR [#338](https://github.com/pion/interceptor/pull/338) which validates that: `padLen > 0 && padLen <= payloadLength` and return error on overflow, avoiding panic.If upgrading is not possible, apply the patch from the pull request manually or drop packets whose P-bit is set but whose padLen is zero or larger than the remaining payload.### WorkaroundsAt the application layer, reject any RTP packet where:```hasPadding (P-bit field) == true && (padLen == 0 || padLen > packetLen – headerLen)```before passing it to Pion’s packet factories.### ReferencesCommit fixing the bug: https://github.com/pion/interceptor/commit/fa5b35ea867389cec33a9c82fffbd459ca8958e5Pull request: https://github.com/pion/interceptor/pull/338Issue: 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
GO
Publish Date
June 9, 2025
Modified Date
June 10, 2025