Denial of service when processing MPLS packets in Juniper Junos OS

1) Resource management error

EUVDB-ID: #VU13876

Risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0030

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability is caused by improper resources management when processing MPLS packets. A remote attacker can repeatedly send specially crafted MPLS packets to the affected device causing it to constantly reload.

The vulnerability affects MPC7/8/9, PTX-FPC3 (FPC-P1, FPC-P2) line cards and PTX1K.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 15.1F1 - 17.4R1-S1

CPE2.3

• cpe:2.3:o:juniper_networks:juniper_junos_os:15.1F6-S9:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:15.1R6-S5:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:16.1X65-D40:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:16.2R2-S4:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:17.1R2-S6:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:17.2X75-D30:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:17.3R1-S3:*:*:*:*:*:*:*
• cpe:2.3:o:juniper_networks:juniper_junos_os:17.4R1-S1:*:*:*:*:*:*:*

External links

http://kb.juniper.net/JSA10864
http://kb.juniper.net/KB25385

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.