CVE-2021-27357

RIOT-OS 2020.01 contains a buffer overflow vulnerability in /sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c

published April 6, 2021

CVSS
โ€”
EPSS
1%
Percentile
68.8
In the wild
Unconfirmed
What it is

โš ๏ธ This buffer overflow in RIOT-OS could let attackers slip through unnoticed! Imagine a sneaky pizza delivery person managing to deliver to any address without even being asked! ๐Ÿ•๐Ÿ“ฆ Think of it as a pizza delivery system that mistakenly accepts any address from a customer without verifying it. Just like that pizza could end up at the wrong doorstep, an attacker could exploit this flaw to send harmful data into the system. If exploited, this vulnerability could allow an attacker to overwrite adjacent memory, potentially causing crashes or unpredictable behavior in the network routing component. While the severity is currently unknown, the possibility of disruptions in service is a cause for concern.

Put simply

Think of it as a pizza delivery system that mistakenly accepts any address from a customer without verifying it. Just like that pizza could end up at the wrong doorstep, an attacker could exploit this flaw to send harmful data into the system. The buffer overflow occurs in the GNRC RPL control messages of RIOT-OS, specifically in the `gnrc_rpl_control_messages.c` file, where insufficient validation of input allows for excess data to overflow into other memory areas.

What to do

If exploited, this vulnerability could allow an attacker to overwrite adjacent memory, potentially causing crashes or unpredictable behavior in the network routing component. While the severity is currently unknown, the possibility of disruptions in service is a cause for concern. To mitigate this vulnerability, ensure your RIOT-OS is updated to the latest version that addresses this overflow issue. Regularly review and test your code for buffer management and input validation practices to prevent similar vulnerabilities. You've got this! Stay proactive, and your systems will be safer in no time! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01236 ยท 68.8th percentile
Published
2021-04-06T12:07Z
EPSS history
Timeline
  • 06 APR 12:07Z
    RIOT-OS 2020.01 contains a buffer overflow vulnerability in /sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c
    cvelistv5