VulnerabilityModified

CVE-2017-12219

HIGH 7.5EPSS 2.66%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability in the handling of IP fragments for the Cisco Small Business SPA300, SPA500, and SPA51x Series IP Phones could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to the inability to handle many large IP fragments for reassembly in a short duration. An attacker could exploit this vulnerability by sending a crafted stream of IP fragments to the targeted device. An exploit could allow the attacker to cause a DoS condition when the device unexpectedly reloads. Cisco Bug IDs: CSCve82586.

CVSS 3.0: 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 2.66% probability · 85th percentile
CISA KEV: Not listed
Weakness: CWE-399
Affected: cisco/spa 301 firmware · cisco/spa 303 firmware · cisco/spa 500ds firmware · cisco/spa 500s firmware · cisco/spa 501g firmware · cisco/spa 502g firmware · cisco/spa 504g firmware · cisco/spa 508g firmware · cisco/spa 509g firmware · cisco/spa 512g firmware · cisco/spa 514g firmware
Source: psirt@cisco.com

References

http://www.securityfocus.com/bid/100926Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039413Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-spaVendor Advisory
http://www.securityfocus.com/bid/100926Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039413Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-spaVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.