#VU65372 Resource exhaustion in Juniper Junos OS and Junos OS Evolved - CVE-2022-22215
Published: July 16, 2022
Vulnerability identifier: #VU65372
Vulnerability risk: Medium
CVSSv4.0: 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-2022-22215
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Juniper Junos OS
Junos OS Evolved
Juniper Junos OS
Junos OS Evolved
Software vendor:
Juniper Networks, Inc.
Juniper Networks, Inc.
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to failure to release file descriptors (e.g. delete the "respective/var/run/.env" file) in plugable authentication module (PAM) when handling gRPC connection termination events. A remote attacker can trigger inode exhaustion by initiating and terminating a large number of gRPC connections and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.