has released free updates that address the described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the software license:

https://www.cisco.com/c/en/us/products/end-user-license-agreement.html

Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.

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 and a complete upgrade solution.

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. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

Customers Without Service Contracts

Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC:
https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html

Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.

Fixed Releases

Customers should upgrade to an appropriate release as indicated in the following table:

Cisco ASA Software Release First Fixed Release for This Vulnerability
Prior to 9.11 Migrate to 9.4.4.
9.11 Migrate to 9.4.4.29
9.21 Migrate to 9.4.4.29
9.31 Migrate to 9.4.4.29
9.4 9.4.4.29
9.51 Migrate to 9.6.4.20
9.6 9.6.4.20
9.71 Migrate to 9.8.3.18
9.8 9.8.3.18
9.9 9.9.2.36
9.10 9.10.1.7

1 Cisco ASA Software releases prior to Release 9.4 and Cisco ASA Software Releases 9.5 and 9.7 have reached end-of-software maintenance. Customers should migrate to a supported release.

Customers can download the software from the Software Center on Cisco.com by clicking Browse all and navigating to Security > Firewalls > Security Appliances (ASA) > ASA 5500-X Series Firewalls, where there is a list of Cisco ASA hardware platforms. Choose a platform, then choose Software on Chassis > Adaptive Security (ASA) Software. Most of these software releases are listed under Interim.

Note: For the fix to be effective, customers who have web management access enabled must ensure that the AAA configuration is accurate and complete. In particular, the aaa authentication http console {LOCAL | <aaa-server>} command must be present. For further information, refer to the “About ASDM Authentication” section of the Cisco ASA Configuration Guide.



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