CVE-2019-1963
Last modified
CVE-2019-1963 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. 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. EPSS estimates a 1.63% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Nx-Os | >= 5.2, < 6.2\(29\) |
| Cisco | Nx-Os | >= 7.3, < 8.4 |
| Cisco | Nx-Os | < 13.2\(7k\) |
| Cisco | Nx-Os | >= 14.0, < 14.0\(2c\) |
| Cisco | Nx-Os | >= 14.1, < 14.1\(1i\) |
| Cisco | Nx-Os | >= 7.0\(3\)f, < 9.2\(3\) |
| Cisco | Nx-Os | < 7.1\(5\)n1\(1b\) |
| Cisco | Nx-Os | >= 7.3, < 7.3\(5\)n1\(1\) |
| Cisco | Nx-Os | < 6.2\(22\) |
| Cisco | Nx-Os | >= 7.2, < 7.2\(0\)d1\(1\) |
| Cisco | Nx-Os | >= 8.0, < 8.2\(3\) |
| Cisco | Nx-Os | >= 8.3, < 8.3\(2\) |
| Cisco | Fx-Os | < 2.2.2.91 |
| Cisco | Fx-Os | >= 2.3, < 2.3.1.130 |
| Cisco | Fx-Os | >= 2.4, < 2.4.1.222 |
| Cisco | Nx-Os | >= 14.1, <= 14.1\(1i\) |
| Cisco | Nx-Os | < 5.2\(1\)sv3\(4.1a\) |
| Cisco | Nx-Os | < 5.2 |
| Cisco | Nx-Os | >= 5.2, < 5.2\(1\)sv5\(1.2\) |
| Cisco | Nx-Os | >= 7.0\(3\)i4, < 7.0\(3\)i4\(9\) |
| Cisco | Nx-Os | >= 7.0\(3\)i7, < 7.0\(3\)i7\(6\) |
| Cisco | Nx-Os | >= 9.2, < 9.2\(3\) |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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