CVE-2018-0305 Null dereference in Cisco FXOS and NX-OS unknown
Unauthenticated remote attackers can cause a denial of service on Cisco network devices by sending crafted packets that trigger a null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-0305?
CVE-2018-0305 is a high-severity vulnerability in Cisco FXOS and NX-OS unknown, published on 21 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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 cause a denial of service (DoS) condition on the affected device. The vulnerability exists because the affected software insufficiently validates 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 force a NULL pointer dereference and 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: CSCvd69966, CSCve02435, CSCve04859, CSCve41590, CSCve41593, CSCve41601.
Weakness: CWE-476
Which versions are affected by CVE-2018-0305?
It affects 5 products.
Products include Cisco Firepower 9000 Firmware, Cisco Nexus 5000 Firmware, Cisco Nexus 7000 Firmware, Cisco Nexus 9000 Firmware, Cisco Unified Computing System Firmware.
How do I fix CVE-2018-0305?
No fix has been published for CVE-2018-0305 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-0305 being exploited?
There is no known exploitation of CVE-2018-0305 in the wild and no public exploit code.
Other vulnerabilities in Cisco FXOS and NX-OS unknown
- CVE-2018-0304 Memory corruption in Cisco FXOS and NX-OS unknown
- CVE-2018-0308 Memory corruption in Cisco FXOS and NX-OS unknown
- CVE-2018-0312 Memory corruption in Cisco FXOS and NX-OS unknown
- CVE-2018-0314 Memory corruption in Cisco FXOS and NX-OS unknown
- CVE-2019-1700 Denial of service in Cisco Firepower Extensible Operating System (FXOS)
Sources
Also known as GHSA-f684-4cqg-v8mf.