cisco-sa-ssl-client-dos-cCrQPkA: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Client Denial of Service Vulnerability
First published: Wed Nov 09 2022(Updated: )
A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management when a device initiates SSL/TLS connections. An attacker could exploit this vulnerability by ensuring that the device will connect to an SSL/TLS server that is using specific encryption parameters. A successful exploit could allow the attacker to cause the affected device to unexpectedly 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-ssl-client-dos-cCrQPkA This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see Cisco Event Response: November 2022 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.
Credit: This vulnerability was found during the resolution a Cisco TAC support case
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Adaptive Security Appliance Software | ||
| Cisco Firepower Management Center (FMC) and Firepower Threat Defense (FTD) Software |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-ssl-client-dos-cCrQPkA?
The severity of cisco-sa-ssl-client-dos-cCrQPkA is high due to its potential to cause a denial of service condition.
How do I fix cisco-sa-ssl-client-dos-cCrQPkA?
To fix cisco-sa-ssl-client-dos-cCrQPkA, update your Cisco Adaptive Security Appliance Software or Cisco Firepower Threat Defense Software to the latest version provided by Cisco.
Who is affected by cisco-sa-ssl-client-dos-cCrQPkA?
Users of Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software are affected by cisco-sa-ssl-client-dos-cCrQPkA.
What types of attacks does cisco-sa-ssl-client-dos-cCrQPkA allow?
cisco-sa-ssl-client-dos-cCrQPkA allows authenticated remote attackers to execute denial of service attacks.
What products are impacted by cisco-sa-ssl-client-dos-cCrQPkA?
Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense products are impacted by cisco-sa-ssl-client-dos-cCrQPkA.
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