CVE-2017-3792

Description

A vulnerability in a proprietary device driver in the kernel of Cisco TelePresence Multipoint Control Unit (MCU) Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. The vulnerability is due to improper size validation when reassembling fragmented IPv4 or IPv6 packets. An attacker could exploit this vulnerability by sending crafted IPv4 or IPv6 fragments to a port receiving content in Passthrough content mode. An exploit could allow the attacker to overflow a buffer. If successful, the attacker could execute arbitrary code or cause a DoS condition on the affected system. Cisco TelePresence MCU platforms TelePresence MCU 5300 Series, TelePresence MCU MSE 8510 and TelePresence MCU 4500 are affected when running software version 4.3(1.68) or later configured for Passthrough content mode. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available, but mitigations are available. Cisco Bug IDs: CSCuu67675.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.99% Top 20%
Vendor Advisory cisco.com
Affected: n/a Cisco TelePresence Multipoint Control Unit (MCU) software version 4.3(1.68) or later configured for Passthrough content mode
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170125-telepresence vendor advisory
http://www.securityfocus.com/bid/95787 third party advisory vdb entry
http://www.securitytracker.com/id/1037698 vdb entry

Frequently Asked Questions

What is the severity of CVE-2017-3792?
CVE-2017-3792 has been scored as a critical severity vulnerability.
How to fix CVE-2017-3792?
To fix CVE-2017-3792, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-3792 being actively exploited in the wild?
It is possible that CVE-2017-3792 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-3792?
CVE-2017-3792 affects n/a Cisco TelePresence Multipoint Control Unit (MCU) software version 4.3(1.68) or later configured for Passthrough content mode.
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