CVE-2021-0287
Published: Jul 15, 2021
Modified: Sep 16, 2024
CVSS v3.1
6.5
Description
In a Segment Routing ISIS (SR-ISIS)/MPLS environment, on Juniper Networks Junos OS and Junos OS Evolved devices, configured with ISIS Flexible Algorithm for Segment Routing and sensor-based statistics, a flap of a ISIS link in the network, can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued link flaps will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 19.4 versions prior to 19.4R1-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S2, 20.2R3; 20.3 versions prior to 20.3R2; Juniper Networks Junos OS Evolved: 20.3-EVO versions prior to 20.3R2-EVO; 20.4-EVO versions prior to 20.4R2-EVO. This issue does not affect: Juniper Networks Junos OS releases prior to 19.4R1. Juniper Networks Junos OS Evolved releases prior to 19.4R1-EVO.
| Vendor | Product | Versions |
|---|---|---|
Juniper Networks | Junos OS | unaffected unspecified - < 19.4R1affected 19.4R1 - < 19.4*affected 20.1 - < 20.1R2-S1, 20.1R3affected 20.2 - < 20.2R2-S2, 20.2R3affected 20.3 - < 20.3R2 |
Juniper Networks | Junos OS Evolved | unaffected unspecified - < 19.4R1-EVOaffected 19.4R1-EVO - < 19.4*affected 20.1R1-EVO - < 20.1*affected 20.2R1-EVO - < 20.2*affected 20.3 - < 20.3R2-EVO+1 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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