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.
References (4)
Core 4
Core References
Vendor Advisory x_refsource_confirm
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-ucm
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1039286
Vendor Advisory x_refsource_confirm
https://quickview.cloudapps.cisco.com/quickview/bug/CSCux21905
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/100662
Scores
CVSS v3
7.5
EPSS
0.0232
EPSS Percentile
81.4%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-119
Status
published
Products (5)
cisco/unified_communications_manager
9.1\(2.10000.28\)
cisco/unified_communications_manager
10.0\(1.10000.24\)
cisco/unified_communications_manager
10.5\(2.10000.5\)
cisco/unified_communications_manager
11.0\(1.10000.10\)
n/a/Cisco Unified Communications Manager
Cisco Unified Communications Manager
Published
Sep 07, 2017
Tracked Since
Feb 18, 2026