cisco-sa-asaftd-ospflls-37Xy2q6r: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software OSPFv2 Link-Local Signaling 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 OSPF Version 2 (OSPFv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to incomplete input validation when the affected software processes certain OSPFv2 packets with Link-Local Signaling (LLS) data. An attacker could exploit this vulnerability by sending a malformed OSPFv2 packet to an affected device. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no 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-ospflls-37Xy2q6r 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<9.14.1.15=9.13<9.13.1.12=9.12<9.12.4.2=9.10<9.10.1.44=9.9<9.9.2.80>=9.7<=9.8<9.8.4.22>=Earlier than 9.6<=9.6<9.6.4.45 | 9.14.1.15 9.13.1.12 9.12.4.2 9.10.1.44 9.9.2.80 9.8.4.22 9.6.4.45 |
| Cisco FTD Software | >=Earlier than 6.2.2=6.2.2=6.2.3=6.3.0<=6.4.0<6.4.0.10 | 6.4.0.10 |
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Frequently Asked Questions
What is the severity of cisco-sa-asaftd-ospflls-37Xy2q6r?
The severity of cisco-sa-asaftd-ospflls-37Xy2q6r is high with a severity value of 8.6.
Which Cisco software versions are affected by cisco-sa-asaftd-ospflls-37Xy2q6r?
Cisco ASA Software versions 9.14, 9.13, 9.12, 9.10, 9.9, 9.8, and earlier versions before 9.6 are affected. Cisco FTD Software versions earlier than 6.2.2 and versions up to and including 6.4.0 are also affected.
How can I fix cisco-sa-asaftd-ospflls-37Xy2q6r?
To fix cisco-sa-asaftd-ospflls-37Xy2q6r, update to the recommended fixed software releases for Cisco ASA Software and Cisco FTD Software.
What is the Common Weakness Enumeration (CWE) for cisco-sa-asaftd-ospflls-37Xy2q6r?
The Common Weakness Enumeration (CWE) for cisco-sa-asaftd-ospflls-37Xy2q6r is CWE-20.
Where can I find more information about cisco-sa-asaftd-ospflls-37Xy2q6r?
You can find more information about cisco-sa-asaftd-ospflls-37Xy2q6r in the Cisco Security Advisory.
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