CVE-2020-1644 Information

Description

On Juniper Networks Junos OS and Junos OS Evolved devices the receipt of a specific BGP UPDATE packet causes an internal counter to be incremented incorrectly which over time can lead to the routing protocols process (RPD) crash and restart. This issue affects both IBGP and EBGP multihop deployment in IPv4 or IPv6 network. This issue affects: Juniper Networks Junos OS: 17.2X75 versions prior to 17.2X75-D105.19; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S10 17.4R3-S2; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7 18.2R3-S4; 18.2X75 versions prior to 18.2X75-D13 18.2X75-D411.1 18.2X75-D420.18 18.2X75-D52.3 18.2X75-D60; 18.3 versions prior to 18.3R2-S4 18.3R3-S2; 18.4 versions prior to 18.4R1-S7 18.4R2-S4 18.4R3-S2; 19.1 versions prior to 19.1R1-S5 19.1R2-S1 19.1R3; 19.2 versions prior to 19.2R1-S5 19.2R2; 19.3 versions prior to 19.3R2-S2 19.3R3; 19.4 versions prior to 19.4R1-S2 19.4R2. Juniper Networks Junos OS Evolved: any releases prior to 20.1R2-EVO. This issue does not affect Juniper Networks Junos OS releases prior to 17.3R1.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://kb.juniper.net/JSA11032

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5