Vulnerability identifier: #VU82431

Vulnerability 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-2020-1608

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Juniper Junos OS
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description

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

Problem Receipt of a specific packet on the core facing interface of an MX Series device configured for Broadband Edge (BBE) service may trigger a kernel crash (vmcore), causing the device to reboot. The issue is specific to the processing of packets destined to BBE clients connected to MX Series subscriber management platforms.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 17.2 - 17.2R3-S2, 17.3 - 17.3R2-S4, 17.4 - 17.4R2-S6, 18.1 - 18.1R3-S5, 18.2 - 18.2R3-S1, 18.3 - 18.3R2-S4, 18.3R2-S3, 18.4 - 18.4R1-S8, 18.4R1-S5, 19.1 - 19.1R1-S2, 19.2 - 19.2R1-S1, 19.3

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External links
http://supportportal.juniper.net/s/article/2020-01-Security-Bulletin-Junos-OS-MX-Series-In-BBE-configurations-receipt-of-a-specific-packet-causes-a-Denial-of-Service-CVE-2020-1608

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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.