CVE-2019-1963

Description

A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, remote attacker to cause the SNMP application on an affected device to restart unexpectedly. The vulnerability is due to improper validation of Abstract Syntax Notation One (ASN.1)-encoded variables in SNMP packets. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the SNMP daemon on the affected device. A successful exploit could allow the attacker to cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.

Risk Information

Base Score

6.5

MODERATE

Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.877

Associated Vulnerability

Vulnerability	OS Platform
Cisco FXOS and NX-OS Software Authenticated Simple Network Management Protocol Denial of Service Vulnerability For Cisco Firepower Extensible Operating System (FXOS)	NCM
Cisco FXOS and NX-OS Software Authenticated Simple Network Management Protocol Denial of Service Vulnerability For Cisco NX-OS Software	NCM
Cisco FXOS and NX-OS Software Authenticated Simple Network Management Protocol Denial of Service Vulnerability For Cisco NX-OS System Software in ACI Mode	NCM
Improper Input Validation Vulnerability (CVE-2019-1963)	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