Input validation error in Junos OS - CVE-2022-22223
Published: October 12, 2022
Vulnerability identifier: #VU68277
CSH Severity: Medium
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-2022-22223
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 insufficient validation of IPv4 and IPv6 packets. A remote attacker can send specially crafted IP packets to the affected device, causing multiple interfaces in the LAG to detach and perform a denial of service (DoS) attack.
Successful exploitation of the vulnerability requires that QFX10000 Series devices using Juniper Networks Junos OS are configured as transit IP/MPLS penultimate hop popping (PHP) nodes with link aggregation group (LAG) interfaces.
Affected software
Junos OS
How to mitigate CVE-2022-22223
Install updates from vendor's website.
Junos OS - addressed in versions 15.1R7-S11, 18.4R2-S10, 18.4R3-S10, 19.1R3-S8, 19.2R3-S4, 19.3R3-S5, 19.4R2-S6, 19.4R3-S7, 20.1R3-S3, 20.2R3-S3, 20.3R3-S2, 20.4R3-S4, 21.1R3, 21.2R3-S3, 21.3R3-S1, 21.4R1