Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Nx-Os | < 8.1\(1\) |
| Cisco | Mds 9132T | - |
| Cisco | Mds 9148S | - |
| Cisco | Mds 9148T | - |
| Cisco | Mds 9216 | - |
| Cisco | Mds 9216A | - |
| Cisco | Mds 9216I | - |
| Cisco | Mds 9222I | - |
| Cisco | Mds 9250I | - |
| Cisco | Mds 9396S | - |
| Cisco | Mds 9396T | - |
| Cisco | Mds 9506 | - |
| Cisco | Mds 9509 | - |
| Cisco | Mds 9513 | - |
| Cisco | Mds 9706 | - |
| Cisco | Mds 9710 | - |
| Cisco | Mds 9718 | - |
| Cisco | 9432Pq | - |
| Cisco | 9536Pq | - |
| Cisco | 9636Pq | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/108358Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securityfocus.com/bid/108358Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2019-1858?
CVE-2019-1858 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 SNM...
How severe is CVE-2019-1858?
CVE-2019-1858 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1858?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Nx-Os, Cisco Mds 9132T, Cisco Mds 9148S, Cisco Mds 9148T, Cisco Mds 9216.