CVE-2018-0160

Description

A vulnerability in Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper management of memory resources, referred to as a double free. An attacker could exploit this vulnerability by sending crafted SNMP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. To exploit this vulnerability via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for an affected system. To exploit this vulnerability via SNMP Version 3, the attacker must know the user credentials for the affected system. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, have been configured to be queried over SNMP, and have Network Address Translation (NAT) enabled. Cisco Bug IDs: CSCve75818.

Category

6.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.22% Top 25%
Vendor Advisory cisco.com
Affected: n/a Cisco IOS XE
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/103575 third party advisory vdb entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-snmp-dos mitigation vendor advisory
http://www.securitytracker.com/id/1040584 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2018-0160?
CVE-2018-0160 has been scored as a medium severity vulnerability.
How to fix CVE-2018-0160?
To fix CVE-2018-0160, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-0160 being actively exploited in the wild?
It is possible that CVE-2018-0160 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0160?
CVE-2018-0160 affects n/a Cisco IOS XE.
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