Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2016-6439

Severity CVSS v4.0:
Pending analysis
Type:
CWE-399 Resource Management Errors
Publication date:
27/10/2016
Last modified:
12/04/2025

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.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:M/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
4.30
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:secure_firewall_management_center:5.3.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.3.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.3.1.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.3.1.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.3.1.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.3.1.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.4.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.4.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:5.4.1.3:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools