An issue was discovered in Fluent Bit 3.1.9. When the Prometheus Remote Write 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_metrics_ng() at prom_rw_prot.c.
Metrics
Affected Vendors & Products
References
History
Wed, 19 Feb 2025 15:15:00 +0000
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Weaknesses | CWE-476 | |
Metrics |
cvssV3_1
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Tue, 18 Feb 2025 18:15:00 +0000
Type | Values Removed | Values Added |
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Description | An issue was discovered in Fluent Bit 3.1.9. When the Prometheus Remote Write 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_metrics_ng() at prom_rw_prot.c. | |
References |
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2025-02-19T15:00:24.262Z
Reserved: 2024-10-27T00:00:00.000Z
Link: CVE-2024-50608
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Updated: 2025-02-19T15:00:12.841Z
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Status : Awaiting Analysis
Published: 2025-02-18T18:15:25.667
Modified: 2025-02-19T15:15:13.970
Link: CVE-2024-50608
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