CVE-2021-0224
Description
A vulnerability in the handling of internal resources necessary to bring up a large number of Layer 2 broadband remote access subscriber (BRAS) nodes in Juniper Networks Junos OS can cause the Access Node Control Protocol daemon (ANCPD) to crash and restart, leading to a Denial of Service (DoS) condition. Continued processing of spoofed subscriber nodes will create a sustained Denial of Service (DoS) condition. When the number of subscribers attempting to connect exceeds the configured maximum-discovery-table-entries value, the subscriber fails to map to an internal neighbor entry, causing the ANCPD process to crash. This issue affects Juniper Networks Junos OS: All versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R2-S13; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S8; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R2.
Risk Information
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Multiple Vulnerabilities are fixed in junos 17.3R3-S12 | NCM |
| Vulnerabilities CVE-2021-0224,CVE-2021-0254,CVE-2021-0255,CVE-2021-0256 are fixed in junos 17.4R2-S13 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.1R3-S13 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.2R3-S8 | NCM |
| Multiple Vulnerabilities are fixed in junos 18.3R3-S5 | NCM |
| Vulnerabilities CVE-2021-0224 are fixed in junos 18.4R3-S8 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.1R3-S4 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.2R3-S2 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.3R3-S1 | NCM |
| Multiple Vulnerabilities are fixed in junos 19.4R3-S1 | 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 |
| Allocation of Resources Without Limits or Throttling Vulnerability (CVE-2021-0224) | 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 |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234