cisco-sa-asaftd-dos-QFcNEPfx: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Denial of Service Vulnerability
First published: Wed Oct 21 2020(Updated: )
Update from October 22nd, 2020: Cisco has become aware of a new Cisco Adaptive Security Appliance vulnerability that could affect the fixed releases recommended for code trains 9.13 and 9.14 in the Fixed Software section of this advisory. See the Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability for additional information. A vulnerability in the TCP packet processing of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a memory exhaustion condition. An attacker could exploit this vulnerability by sending a high rate of crafted TCP traffic through an affected device. A successful exploit could allow the attacker to exhaust device resources, resulting in a DoS condition for traffic transiting the affected device. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-dos-QFcNEPfx This advisory is part of the October 2020 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication, which includes 17 Cisco Security Advisories that describe 17 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: October 2020 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.
Credit: This vulnerability was found by Santosh Krishnamurthy Cisco during internal security testing
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco ASA Software | =9.14<9.14.1.30=9.13<9.13.1.13=9.12<9.12.4.3 | 9.14.1.30 9.13.1.13 9.12.4.3 |
| Cisco FTD Software | =6.4.0<6.4.0.10 | 6.4.0.10 |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-asaftd-dos-QFcNEPfx?
The severity of cisco-sa-asaftd-dos-QFcNEPfx is high with a CVSS score of 8.6.
Which Cisco products are affected by cisco-sa-asaftd-dos-QFcNEPfx?
Cisco ASA Software (versions 9.14, 9.13, and 9.12) and Cisco FTD Software (version 6.4.0) are affected by cisco-sa-asaftd-dos-QFcNEPfx.
How do I fix cisco-sa-asaftd-dos-QFcNEPfx in Cisco ASA Software?
To fix cisco-sa-asaftd-dos-QFcNEPfx in Cisco ASA Software, you should upgrade to the fixed releases 9.14.1.30, 9.13.1.13, or 9.12.4.3.
How do I fix cisco-sa-asaftd-dos-QFcNEPfx in Cisco FTD Software?
To fix cisco-sa-asaftd-dos-QFcNEPfx in Cisco FTD Software, you should upgrade to the fixed release 6.4.0.10.
Where can I find more information about cisco-sa-asaftd-dos-QFcNEPfx?
You can find more information about cisco-sa-asaftd-dos-QFcNEPfx in the Cisco Security Advisory at <reference>.
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