Vulnerability identifier: #VU68582

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

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

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External links
http://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.