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CVE-2017-3792

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
01/02/2017
Last modified:
20/04/2025

Description

A vulnerability in a proprietary device driver in the kernel of Cisco TelePresence Multipoint Control Unit (MCU) Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. The vulnerability is due to improper size validation when reassembling fragmented IPv4 or IPv6 packets. An attacker could exploit this vulnerability by sending crafted IPv4 or IPv6 fragments to a port receiving content in Passthrough content mode. An exploit could allow the attacker to overflow a buffer. If successful, the attacker could execute arbitrary code or cause a DoS condition on the affected system. Cisco TelePresence MCU platforms TelePresence MCU 5300 Series, TelePresence MCU MSE 8510 and TelePresence MCU 4500 are affected when running software version 4.3(1.68) or later configured for Passthrough content mode. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available, but mitigations are available. Cisco Bug IDs: CSCuu67675.

Impact

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

Base Score: 9.80 CRITICAL
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 10.00 HIGH
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

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

Base Score 2.0
10.00
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:telepresence_mcu_software:4.3_\(1.68\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.3_\(2.18\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.3_\(2.30\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.3_\(2.32\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.42\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.49\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.54\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.57\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.67\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.45\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.55\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.71\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.72\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.85\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:telepresence_mcu_4505:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools