CVE-2024-38373

FreeRTOS-Plus-TCP Buffer Over-Read in DNS Response Parser

Description

FreeRTOS-Plus-TCP is a lightweight TCP/IP stack for FreeRTOS. FreeRTOS-Plus-TCP versions 4.0.0 through 4.1.0 contain a buffer over-read issue in the DNS Response Parser when parsing domain names in a DNS response. A carefully crafted DNS response with domain name length value greater than the actual domain name length, could cause the parser to read beyond the DNS response buffer. This issue affects applications using DNS functionality of the FreeRTOS-Plus-TCP stack. Applications that do not use DNS functionality are not affected, even when the DNS functionality is enabled. This vulnerability has been patched in version 4.1.1.

Categories

9.6
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.49%
Vendor Advisory github.com
Affected: FreeRTOS FreeRTOS-Plus-TCP
Published at:
Updated at:

References

Link Tags
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-ppcp-rg65-58mv vendor advisory
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.1.1 release notes

Frequently Asked Questions

What is the severity of CVE-2024-38373?
CVE-2024-38373 has been scored as a critical severity vulnerability.
How to fix CVE-2024-38373?
To fix CVE-2024-38373, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-38373 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-38373 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-38373?
CVE-2024-38373 affects FreeRTOS FreeRTOS-Plus-TCP.
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