An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (RPD) service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in the route advertisements within the BGP FlowSpec domain leading to disruptions in network traffic causing a Denial of Service (DoS) condition. Continued receipt of these update messages will cause a sustained Denial of Service condition. This issue affects Juniper Networks: Junos OS: All versions prior to 17.3R3-S10 with the exceptions of 15.1X49-D240 on SRX Series and 15.1R7-S8 on EX Series; 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R2-S12, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S3, 19.4R2-S3, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S3 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Junos OS Evolved: All versions prior to 20.3R1-S1-EVO, 20.3R2-EVO.
References
Link | Resource |
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https://kb.juniper.net/JSA11101 | Vendor Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Information
Published : 2021-01-15 10:15
Updated : 2022-01-18 09:34
NVD link : CVE-2021-0211
Mitre link : CVE-2021-0211
JSON object : View
CWE
CWE-754
Improper Check for Unusual or Exceptional Conditions
Products Affected
juniper
- srx210
- srx1500
- srx550_hm
- ex4300
- ex4200-vc
- ex4300-48tdc-afi
- ex4300-48t-dc
- ex4300-48tdc
- srx4600
- srx300
- ex4300-24t
- ex4300-48t-afi
- srx340
- ex4550
- srx5800
- srx5400
- srx240
- ex9251
- ex4300-mp
- ex4300-24p-s
- ex4300-24p
- ex8216
- ex4550-vc
- ex4300-48p-s
- ex2300m
- ex4300-48mp
- ex4300-32f-s
- ex4650
- srx550
- srx4200
- ex_rps
- ex2300-c
- ex9214
- junos
- srx3400
- ex4300-48mp-s
- ex4500
- srx550m
- ex4400
- srx3600
- ex4300-vc
- ex6200
- junos_os_evolved
- ex4300m
- ex4300-32f-dc
- ex9204
- ex8200
- ex4300-48p
- ex3300
- ex4300-48tafi
- ex4500-vc
- srx100
- ex4600
- srx345
- ex4300-24t-s
- srx220
- ex3200
- srx4100
- ex4550\/vc
- ex3300-vc
- srx5000
- ex3400
- ex4200
- srx650
- ex2300
- ex8208
- ex2200-vc
- ex4600-vc
- srx5600
- ex9208
- ex4300-32f
- srx380
- srx110
- srx320
- srx240h2
- ex2200-c
- ex9200
- srx1400
- ex8200-vc
- ex9250
- ex2200
- srx4000
- ex4300-48t-dc-afi
- ex9253
- ex6210
- ex4300-48t-s
- ex4300-48t