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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-ppcp-rg65-58mv
Release Notes x_refsource_misc
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.1.1
Scores
CVSS v3
9.6
EPSS
0.0062
EPSS Percentile
44.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-125
CWE-126
Status
published
Products (1)
amazon/freertos-plus-tcp
4.0.0 - 4.1.1
Published
Jun 24, 2024
Tracked Since
Feb 18, 2026