Improper input validation in Juniper Junos OS

1) Improper input validation

EUVDB-ID: #VU82480

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-2023-22394

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

An Improper Handling of Unexpected Data Type vulnerability when handling SIP calls in Juniper Networks Junos OS on SRX Series and MX Series platforms allows an attacker to cause a memory leak leading to Denial of Services (DoS).  This issue occurs on all MX Series platforms with MS-MPC or MS-MIC card and all SRX Series platforms where SIP ALG is enabled.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 19.3 - 22.1R1-S1

External links

http://supportportal.juniper.net/s/article/2023-01-Security-Bulletin-Junos-OS-SRX-Series-and-MX-Series-Memory-leak-due-to-receipt-of-specially-crafted-SIP-calls-CVE-2023-22394

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.