CVE-2021-0211
Description
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.
Risk Information
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Multiple Vulnerabilities are fixed in junos 17.3R3-S10 | NCM |
| Multiple Vulnerabilities are fixed in junos 17.4R3-S4 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.1R3-S12 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.2R3-S6 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.3R3-S4 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.1R3-S3 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.2R3-S1 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.3R3-S1 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.4R3 | NCM |
| Multiple Vulnerabilities are fixed in junos 20.1R2 | NCM |
| Multiple Vulnerabilities are fixed in junos 20.2R2 | NCM |
| Multiple Vulnerabilities are fixed in junos 20.3R2. | NCM |
| Vulnerabilities CVE-2021-0211 are fixed in junos 8.4R3-S6 | NCM |
| Vulnerabilities CVE-2020-1678,CVE-2021-0211 are fixed in junos_evolved 20.1R2 | NCM |
| Vulnerabilities CVE-2021-0211 are fixed in junos_evolved 20.2R2 | NCM |
| Improper Check for Unusual or Exceptional Conditions Vulnerability (CVE-2021-0211) | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704488 | Security Update for junos 9.2r1 |
| PATCH-1704500 | Security Update for junos_evolved 20.2R2 |
| PATCH-1704500 | Security Update for junos_evolved 20.2R2 |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234