CVE-2020-3528 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software OSPFv2 Link-Local Signaling Denial of Service Vulnerability

2020-10-2118:35:40

CWE-400

cisco

www.cve.org

cisco

adaptive security appliance

firepower threat defense

ospfv2

denial of service

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

AI Score

Confidence

High

EPSS

0.002

Percentile

52.6%

JSON

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.

CNA Affected

[
  {
    "product": "Cisco Adaptive Security Appliance (ASA) Software",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]