Resource management error in Juniper Junos OS - CVE-2021-0233

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Main Vulnerability Database Vulnerabilities #VU52289

Resource management error in Juniper Junos OS - CVE-2021-0233

Published: April 16, 2021


Vulnerability identifier: #VU52289
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2021-0233
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS

Detailed vulnerability description

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.


How to mitigate CVE-2021-0233

Install updates from vendor's website.

Sources