SB2017092106 - Denial of service in Cisco Small Business SPA300, SPA500, and SPA51x Series IP Phones
Published: September 21, 2017
Security Bulletin ID
SB2017092106
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Denial of service (CVE-ID: CVE-2017-12219)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the handling of IP fragments for the Cisco Small Business SPA300, SPA500, and SPA51x Series IP Phones due to the inability to handle many large IP fragments for reassembly in a short duration. A remote attacker can send a specially crafted stream of IP fragments and cause the device to reload unexpectedly.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Install update from vendor's website.