Denial of service in Junos OS GPRS

Published: 2022-10-21

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2022-22235
CWE-ID	CWE-755
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Juniper Junos OS Operating systems & Components / Operating system
Vendor	Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper handling of exceptional conditions

EUVDB-ID: #VU68582

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 - Improper Handling of Exceptional Conditions

Exploit availability: No

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: 20.2 - 22.1R1

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

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.