CVE-2016-6439

HIGH

Cisco Firepower System Software <6.0.1 - DoS

Title source: llm
STIX 2.1

Description

A vulnerability in the detection engine reassembly of HTTP packets for Cisco Firepower System Software before 6.0.1 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to the Snort process unexpectedly restarting. The vulnerability is due to improper handling of an HTTP packet stream. An attacker could exploit this vulnerability by sending a crafted HTTP packet stream to the detection engine on the targeted device. An exploit could allow the attacker to cause a DoS condition if the Snort process restarts and traffic inspection is bypassed or traffic is dropped.

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1037061
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/93787

Scores

CVSS v3 7.5
EPSS 0.0163
EPSS Percentile 73.8%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-399
Status published
Products (25)
cisco/secure_firewall_management_center 5.3.0
cisco/secure_firewall_management_center 5.3.0.2
cisco/secure_firewall_management_center 5.3.0.3
cisco/secure_firewall_management_center 5.3.0.4
cisco/secure_firewall_management_center 5.3.1
cisco/secure_firewall_management_center 5.3.1.3
cisco/secure_firewall_management_center 5.3.1.4
cisco/secure_firewall_management_center 5.3.1.5
cisco/secure_firewall_management_center 5.3.1.6
cisco/secure_firewall_management_center 5.4.0
... and 15 more
Published Oct 27, 2016
Tracked Since Feb 18, 2026