CVE-2017-12328

Description

A vulnerability in Session Initiation Protocol (SIP) call handling in Cisco IP Phone 8800 Series devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition because the SIP process unexpectedly restarts. All active phone calls are dropped as the SIP process restarts. The vulnerability is due to incomplete input validation of the SIP packet header. An attacker could exploit this vulnerability by sending a malformed SIP packet to a targeted phone. An exploit could allow the attacker to cause a DoS condition because all phone calls are dropped when the SIP process unexpectedly restarts. Cisco Bug IDs: CSCvc62590.

Category

5.8
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.55%
Vendor Advisory cisco.com
Affected: n/a Cisco IP Phone 8800 Series
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1039922 vdb entry third party advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-ipp vendor advisory
http://www.securityfocus.com/bid/102003 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-12328?
CVE-2017-12328 has been scored as a medium severity vulnerability.
How to fix CVE-2017-12328?
To fix CVE-2017-12328, 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-2017-12328 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-12328 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-12328?
CVE-2017-12328 affects n/a Cisco IP Phone 8800 Series.
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