Vulnerability identifier: #VU18579

Vulnerability risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-0037

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

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

Vendor: Juniper Networks, Inc.

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker in a local network can continuously send the same crafted packet to jdhcpd daemon and cause sustained denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 15.1 - 15.1R7-S2, 15.1F - 15.1F6-S10, 15.1X49 - 15.1X49-D170, 15.1X53 - 15.1X53-D235, 16.1 - 16.1R3-S8, 16.2 - 16.2R2-S7, 17.1 - 17.1R2-S9, 17.2 - 17.2R1-S7, 17.3 - 17.3R3-S2, 17.4 - 17.4R1-S5, 18.1 - 18.1R2-S3, 18.2 - 18.2R1-S5, 18.2X75-D5 - 18.2X75-D20, 18.3 - 18.3R1-S1

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External links
http://www.securityfocus.com/bid/107894
http://kb.juniper.net/JSA10926

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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