CVE-2020-3120
Description
A vulnerability in the Cisco Discovery Protocol implementation for Cisco FXOS Software, Cisco IOS XR Software, and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a missing check when the affected software processes Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to exhaust system memory, causing the device to reload. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Risk Information
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Cisco FXOS, IOS XR, and NX-OS Software Cisco Discovery Protocol Denial of Service Vulnerability For Cisco Firepower Extensible Operating System (FXOS) | NCM |
| Cisco FXOS, IOS XR, and NX-OS Software Cisco Discovery Protocol Denial of Service Vulnerability For Cisco NX-OS Software | NCM |
| Cisco FXOS, IOS XR, and NX-OS Software Cisco Discovery Protocol Denial of Service Vulnerability For Cisco NX-OS System Software in ACI Mode | NCM |
| Integer Overflow or Wraparound Vulnerability (CVE-2020-3120) | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1706063 | Security Update for Cisco Firepower Extensible Operating System (FXOS) 4.1(3a)UCSM |
| PATCH-1706149 | Security Update for Cisco NX-OS Software 4.1(3a)UCSM |
| PATCH-1706155 | Security Update for Cisco NX-OS System Software in ACI Mode 5.2(1)SV5(1.3b) |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234