CVE-2018-0312: Buffer Overflow
First published: Wed Jun 20 2018(Updated: )
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 on an affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packet headers when the software processes packet data. An attacker could exploit this vulnerability by sending a maliciously crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the device, which could allow the attacker to execute arbitrary code or cause a DoS condition on the device. 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: CSCvd69962, CSCve02808, CSCve02810, CSCve02812, CSCve02819, CSCve02822, CSCve02831, CSCve04859.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Nexus 7000 Firmware | =7.3\(2\)d1\(0.49\) | |
| Cisco Nexus 7000 Firmware | =8.0\(1\) | |
| Cisco Nexus 7000 Firmware | =8.1\(0.112\)s0 | |
| Cisco Nexus 7000 | ||
| Cisco Nexus 5000 Firmware | =7.0\(0\)hsk\(0.357\) | |
| Cisco Nexus 3000 | ||
| Cisco Firepower 9000 Firmware | =r211 | |
| Cisco Firepower 9000 Firmware | =r231 | |
| Cisco Firepower 9000 | ||
| Cisco Nexus 9000 Firmware | =8.1\(0\)bd\(0.20\) | |
| Cisco Nexus 9000 Firmware | =8.1\(1\)s4 | |
| Cisco Nexus 9000 | ||
| Cisco Unified Computing System Firmware | =3.1\(3a\)a | |
| Cisco Unified Computing System |
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Reference Links
Frequently Asked Questions
What is CVE-2018-0312?
CVE-2018-0312 is a vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software.
What is the severity of CVE-2018-0312?
The severity of CVE-2018-0312 is critical with a severity value of 9.8.
How can an attacker exploit CVE-2018-0312?
An unauthenticated, remote attacker can exploit CVE-2018-0312 to execute arbitrary code or cause a denial of service (DoS) condition on an affected device.
Which software versions are affected by CVE-2018-0312?
Cisco Nexus 7000 Firmware versions 7.3(2)d1(0.49), 8.0(1), and 8.1(0.112)s0 are affected by CVE-2018-0312.
Where can I find more information about CVE-2018-0312?
More information about CVE-2018-0312 can be found on the following links: [SecurityFocus](http://www.securityfocus.com/bid/104515), [SecurityTracker](http://www.securitytracker.com/id/1041169), [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fx-os-cli-execution).
- collector/nvd-index
- agent/severity
- agent/references
- agent/author
- agent/tags
- agent/event
- agent/description
- agent/weakness
- agent/type
- agent/first-publish-date
- agent/last-modified-date
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- vendor/cisco
- canonical/cisco nexus 7000 firmware
- version/cisco nexus 7000 firmware/7.3\(2\)d1\(0.49\)
- version/cisco nexus 7000 firmware/8.0\(1\)
- version/cisco nexus 7000 firmware/8.1\(0.112\)s0
- canonical/cisco nexus 7000
- canonical/cisco nexus 5000 firmware
- version/cisco nexus 5000 firmware/7.0\(0\)hsk\(0.357\)
- canonical/cisco nexus 3000
- canonical/cisco firepower 9000 firmware
- version/cisco firepower 9000 firmware/r211
- version/cisco firepower 9000 firmware/r231
- canonical/cisco firepower 9000
- canonical/cisco nexus 9000 firmware
- version/cisco nexus 9000 firmware/8.1\(0\)bd\(0.20\)
- version/cisco nexus 9000 firmware/8.1\(1\)s4
- canonical/cisco nexus 9000
- canonical/cisco unified computing system firmware
- version/cisco unified computing system firmware/3.1\(3a\)a
- canonical/cisco unified computing system