Resource exhaustion in Juniper Junos OS



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-22396
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Juniper Junos OS
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU82491

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-2023-22396

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

An Uncontrolled Resource Consumption vulnerability in TCP processing on the Routing Engine (RE) of Juniper Networks Junos OS allows an unauthenticated network-based attacker to send crafted TCP packets destined to the device, resulting in an MBUF leak that ultimately leads to a Denial of Service (DoS).

The system does not recover automatically and must be manually restarted to restore service.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 19.3R1-S1 - 22.3R1

CPE2.3 External links

https://supportportal.juniper.net/s/article/2023-01-Security-Bulletin-Junos-OS-Receipt-of-crafted-TCP-packets-on-Ethernet-console-port-results-in-MBUF-leak-leading-to-Denial-of-Service-DoS-CVE-2023-22396


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.



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