Improper Initialization in Junos OS - CVE-2021-0280
Published: July 20, 2021
Vulnerability identifier: #VU55007
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-0280
CWE-ID: CWE-665
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 improper initialization in Junos OS on PTX platforms and QFX10K Series with Paradise (PE) chipset-based line cards. A remote attacker can send specially crafted packets and cause a denial of service condition on the target system.
Affected software
Junos OS
How to mitigate CVE-2021-0280
Install updates from vendor's website.
Junos OS - addressed in versions 17.4R3-S5, 18.2R3-S8, 18.3R3-S5, 18.4R2-S8, 19.1R3-S5, 19.2R3-S2, 19.3R3-S2, 19.4R3-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2, 20.4R2, 21.1R1