In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release.
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, to determine exposure and a complete upgrade solution. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.
In most cases this will be a maintenance upgrade to software that was previously purchased. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:Īdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner.
Customers may only install and expect support for software versions and feature sets for which they have purchased a license. If the command does not exist, the feature is not supported and the device is not affected by this vulnerability.Ĭisco has released free software updates that address the vulnerability described in this advisory. The following example shows the output of the show onep status command on a device that has the onePK feature enabled: device# show onep status Status: enabled by: Config,Virtual-Service To determine whether the onePK feature is configured, administrators can use the show onep status command in the CLI. Determine Whether the onePK Feature Is Configured
This advisory is part of the June 3, 2020, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 23 Cisco Security Advisories that describe 25 vulnerabilities. This advisory is available at the following link: There are no workarounds that address this vulnerability.
An exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges, or to cause a process crash, which could result in a reload of the device and cause a DoS condition.Ĭisco has released software updates that address this vulnerability. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol message to an affected device. The vulnerability is due to insufficient length restrictions when the onePK Topology Discovery Service parses Cisco Discovery Protocol messages. A vulnerability in the Topology Discovery Service of Cisco One Platform Kit (onePK) in Cisco IOS Software, Cisco IOS XE Software, Cisco IOS XR Software, and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a denial of service (DoS) condition on an affected device.