National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-12311 Detail

Current Description

A vulnerability in the H.264 decoder function of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a Cisco Meeting Server media process to restart unexpectedly when it receives an illegal H.264 frame. The vulnerability is triggered by an H.264 frame that has an invalid picture parameter set (PPS) value. An attacker could exploit this vulnerability by sending a malformed H.264 frame to the targeted device. An exploit could allow the attacker to cause a denial of service (DoS) condition because the media process could restart. The media session should be re-established within a few seconds, during which there could be a brief interruption in service. Cisco Bug IDs: CSCvg12559.

Source:  MITRE      Last Modified:  11/16/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-12311
Original release date:
11/16/2017
Last revised:
12/05/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
5.8 Medium
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L (legend)
Impact Score:
1.4
Exploitability Score:
3.9
CVSS Version 3 Metrics:
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):
Low
CVSS Severity (version 2.0):
CVSS v2 Base Score:
5.0 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.securityfocus.com/bid/101855 Third Party Advisory; VDB Entry External Source BID 101855
http://www.securitytracker.com/id/1039827 Third Party Advisory; VDB Entry External Source SECTRACK 1039827
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-cms Vendor Advisory External Source CONFIRM https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-cms

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Change History 2 change records found - show changes