CVE-2019-9749

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Summary

CVECVE-2019-9749
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-03-13 19:29:00 UTC
Updated2021-07-21 11:39:00 UTC
DescriptionAn issue was discovered in the MQTT input plugin in Fluent Bit through 1.0.4. When this plugin acts as an MQTT broker (server), it mishandles incoming network messages. After processing a crafted packet, the plugin's mqtt_packet_drop function (in /plugins/in_mqtt/mqtt_prot.c) executes the memmove() function with a negative size parameter. That leads to a crash of the whole Fluent Bit server via a SIGSEGV signal.

Risk And Classification

Problem Types: CWE-681

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Treasuredata Fluent Bit All All All All

References

ReferenceSourceLinkTags
Memory corruption in MQTT input plugin leading to crash of the server while processing crafted MQTT message · Issue #1135 · fluent/fluent-bit · GitHub MISC github.com Exploit, Third Party Advisory
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