Vulnerability identifier: #VU29691

Vulnerability risk: Low

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-2020-1641

CWE-ID: CWE-362

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 a race condition within the LLDP implementation. A remote attacker on the local network can send a specially crafted LLDP packet and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 12.3R10 - 12.3R12-S14, 12.3x48 - 12.3X48-D90, 15.1R - 15.1R7-S5, 15.1X49 - 15.1x49-D190, 15.1X53 - 15.1X53-D592, 16.1R7-S7, 16.1R - 16.1R7-S6, 17.1R1 - 17.1R3-S1, 17.2R1 - 17.2R3-S2, 17.3R1 - 17.3R3-S5, 17.4R1 - 17.4R2-S3, 18.1R1 - 18.1R3-S5, 18.2R1 - 18.2R2-S6, 18.2X75-D5 - 18.2X75-D411, 18.3R2-S3, 18.3 - 18.3R2-S2, 18.4R1 - 18.4R1-S4, 19.1R1 - 19.1R1-S3

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External links
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11027&cat=SIRT_1&actp=LIST

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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.