CVE-2021-0236
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
22/04/2021
Last modified:
27/04/2021
Description
Due to an improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved the Routing Protocol Daemon (RPD) service, upon receipt of a specific matching BGP packet meeting a specific term in the flowspec configuration, crashes and restarts causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects only Multiprotocol BGP (MP-BGP) VPNv6 FlowSpec deployments. This issue affects: Juniper Networks Junos OS: 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: All versions after 18.4R1-EVO prior to 20.3R2-EVO. This issue does not affect: Juniper Networks Junos OS versions prior to 18.4R1. Juniper Networks Junos OS Evolved versions prior to 18.4R1-EVO.
Impact
Base Score 3.x
6.50
Severity 3.x
MEDIUM
Base Score 2.0
6.80
Severity 2.0
MEDIUM
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:* | ||
cpe:2.3:o:juniper:junos:18.4:r2-s5:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page