CVE-2017-6791

Severity CVSS v4.0:

Pending analysis

Type:

CWE-119 Buffer Errors

Publication date:

07/09/2017

Last modified:

20/04/2025

Description

A vulnerability in the Trust Verification Service (TVS) of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of Transport Layer Security (TLS) traffic by the affected software. An attacker could exploit this vulnerability by generating incomplete traffic streams. A successful exploit could allow the attacker to deny access to the TVS for an affected device, resulting in a DoS condition, until an administrator restarts the service. Known Affected Releases 10.0(1.10000.24) 10.5(2.10000.5) 11.0(1.10000.10) 9.1(2.10000.28). Cisco Bug IDs: CSCux21905.

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:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

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

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:cisco:unified_communications_manager:9.1\(2.10000.28\):::::::*
cpe:2.3:a:cisco:unified_communications_manager:10.0\(1.10000.24\):::::::*
cpe:2.3:a:cisco:unified_communications_manager:10.5\(2.10000.5\):::::::*
cpe:2.3:a:cisco:unified_communications_manager:11.0\(1.10000.10\):::::::*

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

CPE	From	Up to
cpe:2.3:a:cisco:unified_communications_manager:9.1\(2.10000.28\):::::::*
cpe:2.3:a:cisco:unified_communications_manager:10.0\(1.10000.24\):::::::*
cpe:2.3:a:cisco:unified_communications_manager:10.5\(2.10000.5\):::::::*
cpe:2.3:a:cisco:unified_communications_manager:11.0\(1.10000.10\):::::::*

CVE-2017-6791

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools