National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-3790 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.6 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H (V3 legend)
Impact Score: 4.0
Exploitability Score: 3.9


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

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/95786 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037697
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170125-expressway Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:cisco:expressway:x8.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.1.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.1_base:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.2_base:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.5:rc4:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.5.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.5.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.5.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.5.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.5_base:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.6.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.7.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.7.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:expressway:x8.8.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x5.2_base:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x6.0_base:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x6.1_base:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x7.0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x7.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x7.0.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x7.0.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x7.1_base:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x7.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x7.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cisco:telepresence_video_communication_server:x7.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-3790
NVD Published Date:
02/01/2017
NVD Last Modified:
07/25/2017