CVE-2019-12676: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software OSPF LSA Processing Denial of Service Vulnerability
First published: Wed Oct 02 2019(Updated: )
A vulnerability in the Open Shortest Path First (OSPF) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software improperly parses certain options in OSPF link-state advertisement (LSA) type 11 packets. An attacker could exploit this vulnerability by sending a crafted LSA type 11 OSPF packet to an affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition for client traffic that is traversing the device.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Adaptive Security Appliance | <9.6.4.34 | |
| Cisco Adaptive Security Appliance Software | >=9.7<9.8.4.8 | |
| Cisco Adaptive Security Appliance Software | >=9.9<9.9.2.59 | |
| Cisco Adaptive Security Appliance Software | >=9.10<9.10.1.27 | |
| Cisco Adaptive Security Appliance Software | >=9.12<9.12.2.1 | |
| Cisco Asa 5505 | ||
| Cisco Asa 5510 | ||
| Cisco Asa 5512-x | ||
| Cisco Asa 5515-x | ||
| Cisco Asa 5520 | ||
| Cisco Asa 5525-x | ||
| Cisco Asa 5550 | ||
| Cisco Asa 5555-x | ||
| Cisco Asa 5580 | ||
| Cisco Asa 5585-x | ||
| Cisco Firepower Threat Defense | <6.3.0.4 | |
| Cisco Firepower Threat Defense | >=6.4.0<6.4.0.4 |
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Reference Links
Frequently Asked Questions
What is CVE-2019-12676?
CVE-2019-12676 is a vulnerability in the Open Shortest Path First (OSPF) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software.
How severe is CVE-2019-12676?
CVE-2019-12676 has a severity rating of 7.4 (high).
What software is affected by CVE-2019-12676?
Cisco Adaptive Security Appliance (ASA) Software versions 9.6.4.34, 9.7 to 9.8.4.8, 9.9 to 9.9.2.59, 9.10 to 9.10.1.27, and 9.12 to 9.12.2.1, as well as Cisco Firepower Threat Defense (FTD) Software versions up to 6.3.0.4 and 6.4.0 to 6.4.0.4, are affected by CVE-2019-12676.
How can CVE-2019-12676 be exploited?
An unauthenticated, adjacent attacker can exploit CVE-2019-12676 to cause a reload of an affected device, resulting in a denial of service (DoS) condition.
Where can I find more information about CVE-2019-12676?
You can find more information about CVE-2019-12676 in the Cisco Security Advisory at https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-ospf-lsa-dos.
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- version/cisco adaptive security appliance software/9.12
- canonical/cisco asa 5505
- canonical/cisco asa 5510
- canonical/cisco asa 5512-x
- canonical/cisco asa 5515-x
- canonical/cisco asa 5520
- canonical/cisco asa 5525-x
- canonical/cisco asa 5550
- canonical/cisco asa 5555-x
- canonical/cisco asa 5580
- canonical/cisco asa 5585-x
- canonical/cisco firepower threat defense
- version/cisco firepower threat defense/6.4.0