#VU68280 Input validation error in Junos OS Evolved - CVE-2022-22192

Vulnerability identifier: #VU68280

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-2022-22192

CWE-ID: CWE-20

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 insufficient validation of incoming TCP packets in June OS kernel. A remote attacker can send specially traffic TCP packets to the affected device and cause a kernel panic.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Junos OS Evolved: 20.4R1-EVO, 20.4R1-S1-EVO, 20.4R1-S2-EVO, 20.4R2-EVO, 20.4R2-S1-EVO, 20.4R2-S2-EVO, 20.4R2-S3-EVO, 20.4R3-EVO, 20.4R3-S1-EVO, 20.4R3-S2-EVO, 20.4R3-S3-EVO, 20.4, 21.4R1-EVO, 21.4R1-S1-EVO, 21.4R1-S2-EVO, 21.4R2-EVO, 21.4R2-S1-EVO, 21.4R2-S2-EVO, 22.1R1-EVO, 22.1R1-S1-EVO, 22.1R1-S2-EVO, 22.1-EVO, 22.2-EVO

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External links
https://supportportal.juniper.net/s/article/2022-10-Security-Bulletin-Junos-OS-Evolved-PTX-Series-An-attacker-can-cause-a-kernel-panic-by-sending-a-malformed-TCP-packet-to-the-device-CVE-2022-22192

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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 Internet.

Is there known malware, which exploits this vulnerability?

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