An 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.
Metrics
Affected Vendors & Products
References
Link | Providers |
---|---|
https://github.com/fluent/fluent-bit/issues/1135 |
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2019-03-13T19:00:00Z
Updated: 2024-09-16T22:29:41.796Z
Reserved: 2019-03-13T00:00:00Z
Link: CVE-2019-9749
Vulnrichment
No data.
NVD
Status : Modified
Published: 2019-03-13T19:29:00.297
Modified: 2024-11-21T04:52:13.973
Link: CVE-2019-9749
Redhat
No data.