FreeSWITCH: Out-of-bounds read in mod_rtmp H.264 video message parsing
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| signalwire | freeswitch | affected |
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signalwire | Freeswitch |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.527% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Freeswitch
Freeswitch freeswitch |
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| CPEs | cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Freeswitch
Freeswitch freeswitch |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Signalwire
Signalwire freeswitch |
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| Vendors & Products |
Signalwire
Signalwire freeswitch |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.2, rtmp_rtmp2rtpH264() trusted the length prefix of each inbound H.264 NAL unit without checking it against the bytes remaining in the RTMP message. An oversized declared unit underflowed the unsigned remaining-byte counter and advanced the parser beyond its receive buffer, where the next length-prefix read could crash the process. The flaw affects deployments that build and load mod_rtmp and accept video call sessions, commonly on TCP port 1935; placing the call requires a directory login where auth-calls is true, while no credentials are required where auth-calls is absent or false. A remote client can terminate FreeSWITCH and every active call, but the defect supplies no write primitive and memory disclosure has not been demonstrated. This issue is fixed in version 1.11.2. | |
| Title | FreeSWITCH: Out-of-bounds read in mod_rtmp H.264 video message parsing | |
| Weaknesses | CWE-125 CWE-191 |
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| References |
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| Metrics |
cvssV3_1
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