Denial of Service Vulnerability in Cisco Small Business IP Phones
CVE-2017-12219

7.5HIGH

Key Information:

Vendor
Cisco
Status
Cisco Small Business Spa300, Spa500, And Spa51x Series Ip Phones
Vendor
CVE Published:
21 September 2017

Summary

A flaw exists in the IP fragment handling mechanism of Cisco Small Business SPA300, SPA500, and SPA51x Series IP Phones. This vulnerability allows an unauthenticated attacker to exploit the device by sending specially crafted IP fragments, causing it to reload unexpectedly. Such unexpected reloads can lead to a Denial of Service (DoS) condition, disrupting normal device operations and affecting network communication.

Affected Version(s)

Cisco Small Business SPA300, SPA500, and SPA51x Series IP Phones Cisco Small Business SPA300, SPA500, and SPA51x Series IP Phones

References

https://tools.cisco.com/security/center/content/CiscoSecu...
x_refsource_CONFIRM
http://www.securityfocus.com/bid/100926
vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1039413
vdb-entryx_refsource_SECTRACK

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.