Vulnerability identifier: #VU12785
Vulnerability risk: Medium
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco Meeting Server
Client/Desktop applications /
Multimedia software
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the Real-Time Transport Protocol (RTP) bitstream processing due to insufficient input validation of incoming RTP bitstreams. A remote attacker can send a specially crafted RTP bitstream to a target Cisco Meeting Server, deny audio and video services and cause the service to crash.
Mitigation
Update to versions 2.3, 2.3.1, 2.2.10 or 2.1.12.
Vulnerable software versions
Cisco Meeting Server: 2.1 - 2.2
External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-msms
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.