CVE-2024-50609
Reported by mitre · Published February 18, 2025
An issue was discovered in Fluent Bit 3.1.9. When the OpenTelemetry input plugin is running and listening on an IP address and port, one can send a packet with Content-Length: 0 and it crashes the server. Improper handling of the case when Content-Length is 0 allows a user (with access to the endpoint) to perform a remote Denial of service attack. The crash happens because of a NULL pointer dereference when 0 (from the Content-Length) is passed to the function cfl_sds_len, which in turn tries to cast a NULL pointer into struct cfl_sds. This is related to process_payload_traces_proto_ng() at opentelemetry_prot.c.
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
| n/a | n/a | * |
Timeline
- Feb 18, 2025 CVE Published
- Feb 18, 2025 Coalition ESS Score (11 in total, the first dated here)
- Feb 18, 2025 PoC Published (7 in total, the first dated here)
- Feb 19, 2025 EPSS Score (30 in total, the first dated here)
- Mar 17, 2026 Security Advisory (3 in total, the first dated here)
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