PT-2017-8975 · Cisco · Cisco Firepower System+1

Published 2017-04-20 · Updated 2024-11-26 · CVE-2016-6368

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco Firepower System Software versions prior to 5.4.0.10 Cisco Firepower System Software versions prior to 5.4.1.9 Cisco Firepower System Software versions prior to 6.0.1.3 Cisco Firepower System Software versions prior to 6.1.0 Cisco Firepower System Software versions prior to 6.2.0

Description A vulnerability in the detection engine parsing of Pragmatic General Multicast (PGM) protocol packets could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to the Snort process unexpectedly restarting. The vulnerability is due to improper input validation of the fields in the PGM protocol packet. An attacker could exploit this vulnerability by sending a crafted PGM packet to the detection engine on the targeted device. An exploit could allow the attacker to cause a DoS condition if the Snort process restarts and traffic inspection is bypassed or traffic is dropped.

Recommendations For versions prior to 5.4.0.10, update to version 5.4.0.10 or later. For versions prior to 5.4.1.9, update to version 5.4.1.9 or later. For versions prior to 6.0.1.3, update to version 6.0.1.3 or later. For versions prior to 6.1.0, update to version 6.1.0 or later. For versions prior to 6.2.0, update to version 6.2.0 or later.

Fix

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2016-6368

Affected Products

Cisco Firepower System

Snort

References · 5

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170419-fpsnort · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-6368 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-6368 · Security Note
• http://securityfocus.com/bid/98292 · Note
• http://securityfocus.com/bid/97932 · Note