VDB
CVE-2018-19417
CVE-2018-19417
PUBLISHED
CVSS 10 CRITICAL
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.
EPSS 5.69% · 92.8th percentile
Risk Scores
CVSS 3.0
10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score
5.69%
92.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| contiki-ng | contiki-ng | 0 |
| n/a | n/a | n/a |
Timeline
- Nov 21, 2018 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Dec 29, 2021 EPSS Score
- Mar 2, 2022 EPSS Score
- May 4, 2022 EPSS Score
- Jul 6, 2022 EPSS Score
- Sep 7, 2022 EPSS Score
- Nov 9, 2022 EPSS Score
- Mar 15, 2023 EPSS Score
- May 17, 2023 EPSS Score