Input validation error in Junos OS - CVE-2020-1668
Published: October 15, 2020
Vulnerability identifier: #VU47667
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1668
CWE-ID: CWE-20
Exploitation vector: Adjecent network
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 receipt of a stream of specific multicast packets by the layer2 interface can cause high CPU load. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
Junos OS
How to mitigate CVE-2020-1668
Install updates from vendor's website.
Junos OS - addressed in versions 18.1R3-S11, 18.2R3-S5, 18.3R2-S4, 18.3R3-S3, 18.4R2-S5, 18.4R3-S4, 19.1R3-S2, 19.2R1-S5, 19.2R3, 19.3R2-S4, 19.3R3, 19.4R1-S3, 19.4R2-S1, 19.4R3, 20.1R1-S2, 20.1R2, 20.2R1