CVE-2019-1694

High

Description

A vulnerability in the TCP processing engine 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 the improper handling of TCP traffic. An attacker could exploit this vulnerability by sending a specific sequence of packets at a high rate through an affected device. A successful exploit could allow the attacker to temporarily disrupt traffic through the device while it reboots.

SeverityHigh
CVSS8.6
Exploit probability—
ProductCisco Adaptive Security Appliance Software
PublishedMay 3, 2019
First seenMay 3, 2019

How to fix

Update
  • cisco adaptive_security_appliance_software9.4.4.34, 9.6.4.25, 9.8.4, 9.9.2.50, 9.10.1.17 or later
  • cisco secure_firewall_threat_defense6.2.3.12, 6.3.0.3 or later

Affected products

ProductAffected versionsFixed in
cisco adaptive_security_appliance_softwarev < 9.4.4.34, 9.5 ≤ v < 9.6.4.25, 9.7 ≤ v < 9.8.4, 9.9 ≤ v < 9.9.2.50, 9.10 ≤ v < 9.10.1.179.4.4.34, 9.6.4.25, 9.8.4, 9.9.2.50, 9.10.1.17
cisco secure_firewall_threat_defensev < 6.2.3.12, 6.3.0 ≤ v < 6.3.0.36.2.3.12, 6.3.0.3

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