Out-of-bounds Read in Amazon Web Services Freertos
CVE-2019-13120
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.
Vulnerability class: Buffer Overflow
EPSS: 0.012 (64.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Amazon Amazon_web_services_freertos
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-13120?
- CVE-2019-13120 is a high-severity vulnerability in Amazon Web Services Freertos, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2019-10-07.
- How severe is CVE-2019-13120?
- High severity. CVSS v3 base score is 7.5 out of 10.