Resource management error in Junos OS - CVE-2021-0233
Published: April 16, 2021
Vulnerability identifier: #VU52289
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-2021-0233
CWE-ID: CWE-399
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 management of internal resources when processing a high rate of specific packets. A remote attacker can pass specially crafted traffic to the system and crash the Forwarding Engine Board (FFEB) .
Note, this issue affects Juniper Networks Junos OS on ACX500 Series, ACX4000 Series.
Affected software
Junos OS
How to mitigate CVE-2021-0233
Install updates from vendor's website.
Junos OS - update to 17.4R3-S2