CVE-2018-0310: Critical severity cisco nx-os vulnerability
A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to obtain sensitive information from memory or cause a denial of service (DoS) condition on the affected product. 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 overread condition, which could allow the attacker to obtain sensitive information from memory or cause a DoS condition on the affected product. This vulnerability affects 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: CSCvd69957, CSCve02435, CSCve04859, CSCve41536, CSCve41538, CSCve41559.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2018-0310?
The severity of CVE-2018-0310 is rated as high due to the potential for denial of service and exposure of sensitive information.
How do I fix CVE-2018-0310?
To fix CVE-2018-0310, update your Cisco NX-OS software to a version that is not affected by this vulnerability.
Which Cisco NX-OS versions are affected by CVE-2018-0310?
CVE-2018-0310 affects Cisco NX-OS versions 7.0(0)hsk(0.357), 8.1(0.2)s0, 8.0(1), and 8.8(0.1), among others.
What types of attacks can CVE-2018-0310 enable?
CVE-2018-0310 can enable unauthenticated remote attacks leading to denial of service or the disclosure of sensitive information from memory.
Is my Cisco Nexus device vulnerable to CVE-2018-0310?
Only specific versions of Cisco NX-OS running on certain Nexus devices are vulnerable to CVE-2018-0310; check your device’s software version.