Denial of service in Junos OS and Junos OS Evolved OSPFv3 LSA handilng

1) Input validation error

EUVDB-ID: #VU68365

Risk: Medium

CVSSv4.0: 4.9 [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/E:U/U:Green]

CVE-ID: CVE-2022-22230

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the Routing Protocol Daemon (rpd). If another router generates more than one specific valid OSPFv3 LSA then rpd will crash.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Junos OS Evolved: 20.4R1-EVO - 22.2R1-S1-EVO

Juniper Junos OS: 19.2R1-S1 - 22.1R1

CPE2.3

• cpe:2.3:o:juniper_networks:junos_os_evolved:20.4:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:junos_os_evolved:21.1:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:junos_os_evolved:21.2R3-EVO:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:junos_os_evolved:21.3R3-S1-EVO:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:junos_os_evolved:21.4R1-S2-EVO:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:junos_os_evolved:22.1R1-S2-EVO:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:junos_os_evolved:22.2R1-S1-EVO:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.2:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:19.4:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:20.2:*:*:*:*:*:*:*

External links

https://supportportal.juniper.net/s/article/2022-10-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-RPD-crash-upon-receipt-of-specific-OSPFv3-LSAs-CVE-2022-22230

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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