CVE Catalog

CVE-2019-12676

HighCVSS 7.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.51%

41th percentile - higher than 41% of all known CVEs

Summary

A vulnerability in the OSPF implementation of Cisco ASA and FTD Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS). The issue is due to improper parsing of certain options in OSPF LSA type 11 packets. An attacker could exploit this by sending a crafted LSA type 11 OSPF packet.

Risk Assessment

The attack can cause device downtime, impacting client traffic traversing the device and potentially leading to service disruption.

Recommendation

Apply Cisco-provided updates for ASA and FTD software. Restrict OSPF trusted neighbors to necessary devices.

Other vulnerabilities in Cisco ASA Software

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Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS