CVE-2018-0308

Critical

Description

A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. The vulnerability exists because the affected software insufficiently validates header values in Cisco Fabric Services packets. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow that could allow the attacker to execute arbitrary code or cause a DoS condition. This vulnerability affects the following if configured to use Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69954, CSCve02463, CSCve02785, CSCve02787, CSCve02804, CSCve04859.

SeverityCritical
CVSS9.8
Exploit probability—
ProductCisco Nexus 7000 Firmware
PublishedJun 20, 2018
First seenJun 20, 2018

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
cisco nexus_7000_firmware7.3\(2\)d1\(0.49\), 8.0\(1\), 8.1\(0.112\)s0—
cisco nexus_5000_firmware7.0\(0\)hsk\(0.357\), 7.3\(0\)d1\(0.98\), 8.1\(0.2\)s0—
cisco firepower_9000_firmwarer211, r231—
cisco nexus_9000_firmware8.1\(0\)bd\(0.20\), 8.1\(1\)s4—
cisco unified_computing_system_firmware3.1\(3a\)a, 7.0\(0\)hsk\(0.357\)—

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