Vulnerability identifier: #VU68365

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22230

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Junos OS Evolved
Operating systems & Components / Operating system
Juniper Junos OS
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 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: 22.2-EVO - 22.2R1-S1-EVO, 21.3-EVO - 21.3R3-S1-EVO, 21.2-EVO - 21.2R3-EVO, 20.4 - 20.4R3-S4-EVO, 20.4R2-S2-EVO, 21.1 - 21.1R3-S1-EVO, 22.1-EVO - 22.1R1-S2-EVO, 21.4R1-EVO - 21.4R1-S2-EVO

Juniper Junos OS: 21.3R1 - 21.3R3-S1, 19.4 - 19.4R2-S7, 19.4R1 - 19.4R1-S4, 20.3 - 20.3R3-S4, 22.1R1 - 22.1R1-S2, 21.2R1 - 21.2R3, 20.4 - 20.4R3-S3, 20.2 - 20.2R3-S4, 19.2 - 19.2R3-S5, 19.2R1-S4, 21.4R1 - 21.4R1-S2, 21.1 - 21.1R3-S1

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External links
http://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

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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.