cve-2018-19417
Vulnerability from cvelistv5
Published
2018-11-21 19:00
Modified
2024-08-05 11:37
Severity ?
EPSS score ?
Summary
An issue was discovered in the MQTT server in Contiki-NG before 4.2. The function parse_publish_vhdr() that parses MQTT PUBLISH messages with a variable length header uses memcpy to input data into a fixed size buffer. The allocated buffer can fit only MQTT_MAX_TOPIC_LENGTH (default 64) bytes, and a length check is missing. This could lead to Remote Code Execution via a stack-smashing attack (overwriting the function return address). Contiki-NG does not separate the MQTT server from other servers and the OS modules, so access to all memory regions is possible.
References
▼ | URL | Tags | |
---|---|---|---|
cve@mitre.org | https://github.com/contiki-ng/contiki-ng/issues/600 | Exploit, Third Party Advisory |
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Sightings
Author | Source | Type | Date |
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.