Vulnerability Monitor

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CVE-2017-3792

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.

Published

2017-02-01T19:59:00.267

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-20
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco telepresence_mcu_software 4.3_\(1.68\) Yes
Application cisco telepresence_mcu_software 4.3_\(2.18\) Yes
Application cisco telepresence_mcu_software 4.3_\(2.30\) Yes
Application cisco telepresence_mcu_software 4.3_\(2.32\) Yes
Application cisco telepresence_mcu_software 4.4_\(3.42\) Yes
Application cisco telepresence_mcu_software 4.4_\(3.49\) Yes
Application cisco telepresence_mcu_software 4.4_\(3.54\) Yes
Application cisco telepresence_mcu_software 4.4_\(3.57\) Yes
Application cisco telepresence_mcu_software 4.4_\(3.67\) Yes
Application cisco telepresence_mcu_software 4.5_\(1.45\) Yes
Application cisco telepresence_mcu_software 4.5_\(1.55\) Yes
Application cisco telepresence_mcu_software 4.5_\(1.71\) Yes
Application cisco telepresence_mcu_software 4.5_\(1.72\) Yes
Application cisco telepresence_mcu_software 4.5_\(1.85\) Yes
Hardware cisco telepresence_mcu_4505 - No
Hardware cisco telepresence_mcu_4510 - No
Hardware cisco telepresence_mcu_4515 - No
Hardware cisco telepresence_mcu_4520 - No
Hardware cisco telepresence_mcu_5310 - No
Hardware cisco telepresence_mcu_5320 - No
Hardware cisco telepresence_mcu_mse_8510 - No
References