Denial of service in Junos OS dcpfe

1) Input validation error

EUVDB-ID: #VU75152

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1697

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to improper validation of ethernet frames in dcpfe process. A remote attacker on the local network can send specially crafted ethernet frames to the affected device and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 19.4 - 22.2R1-S1

External links

http://supportportal.juniper.net/s/article/2023-04-Security-Bulletin-Junos-OS-QFX10000-Series-PTX1000-Series-The-dcpfe-process-will-crash-when-a-malformed-ethernet-frame-is-received-CVE-2023-1697

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.