CVE-2019-13120: amazon amazon_web_services_freertos Out-of-bounds Read

Vulnerability summary

CVE-2019-13120 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in amazon amazon_web_services_freertos. EPSS estimates a 1.19% chance of exploitation in the next 30 days, higher than 67.4% of scored vulnerabilities.

Timeline

1. 07-10-2019
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

Amazon FreeRTOS up to and including v1.4.8 lacks length checking in prvProcessReceivedPublish, resulting in untargetable leakage of arbitrary memory contents on a device to an attacker. If an attacker has the authorization to send a malformed MQTT publish packet to an Amazon IoT Thing, which interacts with an associated vulnerable MQTT message in the application, specific circumstances could trigger this vulnerability.

• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.