#VU68279 Resource management error in Junos OS Evolved - CVE-2022-22211

Vulnerability identifier: #VU68279

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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-2022-22211

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Junos OS Evolved
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

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 in FPC. A remote attacker can force continuous polling of the SNMP jnxCosQstatTable and causes the FPC to run out of GUID space.

The vulnerability affects Juniper Networks Junos OS Evolved on PTX Series.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Junos OS Evolved: 20.4R1-EVO - 20.4, 21.3-EVO - 21.3R2-S2-EVO, 21.4R1-EVO - 21.4R1-S2-EVO, 22.1-EVO - 22.1R1-S2-EVO, 22.2-EVO

---

External links
https://supportportal.juniper.net/s/article/2022-10-Security-Bulletin-Junos-OS-Evolved-PTX-Series-Multiple-FPCs-become-unreachable-due-to-continuous-polling-of-specific-SNMP-OID-CVE-2022-22211

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.