Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2017-3790

A vulnerability in the received packet parser of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) software could allow an unauthenticated, remote attacker to cause a reload of the affected system, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient size validation of user-supplied data. An attacker could exploit this vulnerability by sending crafted H.224 data in Real-Time Transport Protocol (RTP) packets in an H.323 call. An exploit could allow the attacker to overflow a buffer in a cache that belongs to the received packet parser, which will result in a crash of the application, resulting in a DoS condition. All versions of Cisco Expressway Series Software and Cisco TelePresence VCS Software prior to version X8.8.2 are vulnerable. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Cisco Bug IDs: CSCus99263.

Published

2017-02-01T19:59:00.190

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 8.6 (HIGH)

CVSSv2 Vector

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

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

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-399
  • Type: Primary
    CWE-20
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco expressway x8.1.0 Yes
Application cisco expressway x8.1.1 Yes
Application cisco expressway x8.1.2 Yes
Application cisco expressway x8.1_base Yes
Application cisco expressway x8.2.1 Yes
Application cisco expressway x8.2.2 Yes
Application cisco expressway x8.2_base Yes
Application cisco expressway x8.5 Yes
Application cisco expressway x8.5.0 Yes
Application cisco expressway x8.5.1 Yes
Application cisco expressway x8.5.2 Yes
Application cisco expressway x8.5.3 Yes
Application cisco expressway x8.5_base Yes
Application cisco expressway x8.6.0 Yes
Application cisco expressway x8.6.1 Yes
Application cisco expressway x8.7.0 Yes
Application cisco expressway x8.7.1 Yes
Application cisco expressway x8.7.2 Yes
Application cisco expressway x8.7.3 Yes
Application cisco expressway x8.8.0 Yes
Application cisco expressway x8.8.1 Yes
Application cisco telepresence_video_communication_server x5.2_base Yes
Application cisco telepresence_video_communication_server x6.0_base Yes
Application cisco telepresence_video_communication_server x6.1_base Yes
Application cisco telepresence_video_communication_server x7.0.0 Yes
Application cisco telepresence_video_communication_server x7.0.1 Yes
Application cisco telepresence_video_communication_server x7.0.2 Yes
Application cisco telepresence_video_communication_server x7.0.3 Yes
Application cisco telepresence_video_communication_server x7.1_base Yes
Application cisco telepresence_video_communication_server x7.2.0 Yes
Application cisco telepresence_video_communication_server x7.2.1 Yes
Application cisco telepresence_video_communication_server x7.2.2 Yes
References