#VU68582 Improper handling of exceptional conditions in Juniper Junos OS - CVE-2022-22235

Vulnerability identifier: #VU68582

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-2022-22235

CWE-ID: CWE-755

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
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 improper handling of errors in the Packet Forwarding Engine (PFE) when handling GPRS Tunnel Protocol (GTP) packets. A remote attacker can send specially crafted traffic to the device and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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

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External links
https://supportportal.juniper.net/s/article/2022-10-Security-Bulletin-Junos-OS-SRX-Series-A-flowd-core-will-be-observed-when-malformed-GPRS-traffic-is-processed-CVE-2022-22235

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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.