Riot
CVE-2021-27698
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
RIOT-OS 2021.01 contains a buffer overflow vulnerability in /sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c through the _parse_options() function.
AnalysisAI
RIOT-OS 2021.01 contains a buffer overflow vulnerability in /sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c through the _parse_options() function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. RIOT-OS 2021.01 contains a buffer overflow vulnerability in /sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c through the _parse_options() function. Affected products include: Riot-Os Riot.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.
RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process
RIOT RIOT-OS version after commit 7af03ab624db0412c727eed9ab7630a5282e2fd3 contains a Buffer Overflow vulnerability in s
RIOT IoT operating system has an out-of-bounds read vulnerability (CVSS 9.1) that could lead to information disclosure o
RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit, 16-bit a
RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit, 16-bit a
RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit, 16-bit a
RIOT is an operating system for internet of things (IoT) devices. Rated high severity (CVSS 7.5), this vulnerability is
RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to proc
RIOT 2019.07 contains a NULL pointer dereference in the MQTT-SN implementation (asymcute), potentially allowing an attac
In the TCP implementation (gnrc_tcp) in RIOT through 2019.07, the parser for TCP options does not terminate on all input
RIOT through 2019.07 contains a memory leak in the TCP implementation (gnrc_tcp), allowing an attacker to consume all me
RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Things (IoT)
Same weakness CWE-120 – Classic Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today