Denial of Service Vulnerability in Cisco Firepower System Software
CVE-2017-12244

8.6HIGH

Key Information:

Vendor
Cisco
Status
Cisco Firepower Detection Engine
Vendor
CVE Published:
5 October 2017

Summary

A vulnerability exists in the Cisco Firepower System Software that affects how IPv6 packets are parsed by the detection engine. This issue can be exploited by an unauthenticated remote attacker who sends a specially crafted IPv6 packet to the system. If successful, this can lead to unexpected restarts of the Snort process, resulting in high CPU utilization and potentially causing a denial of service (DoS) condition. The vulnerability specifically impacts systems configured with file action policies and is present in multiple Cisco security appliance models running on software version 6.0 and later.

Affected Version(s)

Cisco Firepower Detection Engine Cisco Firepower Detection Engine

References

http://www.securityfocus.com/bid/101119
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https://tools.cisco.com/security/center/content/CiscoSecu...
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CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.