CVE-2024-50608
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...
Original description
The description as published by the source.
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.
Affected packages
Bitnami
fluent-bit
[{"type":"SEMVER","events":[{"introduced":"3.1.9"},{"fixed":"3.1.10"}]}]
References
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- web fluentbit.io
- web ebryx.com