CVE-2019-13120 Information disclosure in n/a

High 7.5 Published 7 Oct 2019 Updated 4 Aug 2024

An attacker with MQTT publish authorization can trigger memory leakage in Amazon FreeRTOS by sending malformed packets, exposing arbitrary memory contents.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-13120?

CVE-2019-13120 is a high-severity vulnerability in n/a, published on 7 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-125

Which versions are affected by CVE-2019-13120?

It affects 1 product.

Products include Amazon Amazon Web Services Freertos.

How do I fix CVE-2019-13120?

No fix has been published for CVE-2019-13120 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-13120 being exploited?

There is no known exploitation of CVE-2019-13120 in the wild and no public exploit code.

Sources

Also known as GHSA-vvg7-3vpg-wq97.