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.
References
Link | Resource |
---|---|
https://github.com/fluent/fluent-bit/issues/1135 | Exploit Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2022-10-03T16:19:40
Updated: 2022-10-03T16:19:40
Reserved: 2022-10-03T00:00:00
Link: CVE-2019-9749
JSON object: View
NVD Information
Status : Analyzed
Published: 2019-03-13T19:29:00.297
Modified: 2021-07-21T11:39:23.747
Link: CVE-2019-9749
JSON object: View
Redhat Information
No data.
CWE