Unrated severityOSV Advisory· Published Mar 13, 2019· Updated Sep 16, 2024
CVE-2019-9749
CVE-2019-9749
Description
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.
Affected products
1- Range: 0.13-dev-0.10, 0.13-dev-0.11, 0.13-dev-0.12, …
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- github.com/fluent/fluent-bit/issues/1135mitrex_refsource_MISC
News mentions
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