CVE-2019-1858

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 unauthenticated, remote attacker to cause the SNMP application to leak system memory, which could cause an affected device to restart unexpectedly. The vulnerability is due to improper error handling when processing inbound SNMP packets. An attacker could exploit this vulnerability by sending multiple crafted SNMP packets to an affected device. A successful exploit could allow the attacker to cause the SNMP application to leak system memory because of an improperly handled error condition during packet processing. Over time, this memory leak could 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

8.6

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS Score

Exploitation Probability

2.994

Associated Vulnerability

Vulnerability	OS Platform
Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability For Cisco Firepower Extensible Operating System (FXOS)	NCM
Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability For Cisco NX-OS Software	NCM
Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability For Cisco NX-OS System Software in ACI Mode	NCM
Improper Handling of Exceptional Conditions Vulnerability (CVE-2019-1858)	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