CVE-2019-1918
Description
A vulnerability in the implementation of Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an unauthenticated attacker who is in the same IS-IS area to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of IS–IS link-state protocol data units (PDUs). An attacker could exploit this vulnerability by sending specific link-state PDUs to an affected system to be processed. A successful exploit could allow the attacker to cause incorrect calculations used in the weighted remote shared risk link groups (SRLG) or in the IGP Flexible Algorithm. It could also cause tracebacks to the logs or potentially cause the receiving device to crash the IS–IS process, resulting in a DoS condition.
Risk Information
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability For Cisco Carrier Routing System | NCM |
| Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability For Cisco ASR 9000 Series Aggregation Services Routers | NCM |
| Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability For Cisco Network Convergence System 6000 Series Routers | NCM |
| Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability For Cisco IOS XRv 9000 Router | NCM |
| Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability For Cisco Network Convergence System 5000 Series | NCM |
| Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability For Cisco Network Convergence System 5500 Series | NCM |
| Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability For Cisco Network Convergence System 1000 Series | NCM |
| Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability For Cisco Network Convergence System 500 Series Routers | NCM |
| Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnerability For Cisco 8000 Series Routers | NCM |
| Incorrect Calculation Vulnerability (CVE-2019-1918) | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1705675 | Security Update for Cisco Carrier Routing System 5.3.1 |
| PATCH-1705564 | Security Update for Cisco ASR 9000 Series Aggregation Services Routers 5.3.0.1i.BASE |
| PATCH-1705630 | Security Update for Cisco Network Convergence System 6000 Series Routers 6.1.4 |
| PATCH-1705219 | Security Update for Cisco IOS XRv 9000 Router 7.1.2.1i.BASE |
| PATCH-1706021 | Security Update for Cisco Network Convergence System 5000 Series 6.2.1.21i.BASE |
| PATCH-1705220 | Security Update for Cisco Network Convergence System 5500 Series 7.1.2.1i.BASE |
| PATCH-1705124 | Security Update for Cisco Network Convergence System 1000 Series 7.2.1.9i.ROUT |
| PATCH-1705229 | Security Update for Cisco Network Convergence System 500 Series Routers 7.2.1.21i.BASE |
| PATCH-1705230 | Security Update for Cisco 8000 Series Routers 7.2.1.21i.BASE |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234