Input validation error in Junos OS - CVE-2020-1661
Published: October 15, 2020
Vulnerability identifier: #VU47664
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1661
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in jdhcp process. A remote attacker can send specially crafted DHCP packet and perform a denial of service (DoS) attack.
Affected software
Junos OS
How to mitigate CVE-2020-1661
Install updates from vendor's website.
Junos OS - addressed in versions 12.3X48-D105, 12.3R12-S16, 14.1X53-D60, 15.1X49-D221, 15.1X49-D230, 15.1X53-D593, 15.1R7-S7, 16.1R7-S5, 16.2R1