#VU59115 Out-of-bounds write in uIP and Contiki OS - CVE-2020-17437
Published: December 29, 2021
Vulnerability identifier: #VU59115
Vulnerability risk: Critical
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red
CVE-ID: CVE-2020-17437
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
uIP
Contiki OS
uIP
Contiki OS
Software vendor:
Adam Dunkels
contiki-os.org
Adam Dunkels
contiki-os.org
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing TCP packets with Urgent flag. A remote attacker can send specially crafted traffic to the system, trigger an out-of-bounds write and execute arbitrary code on the target system.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.