First published: Thu Jan 26 2017(Updated: )
A vulnerability in Intermediate System-to-Intermediate System (IS-IS) protocol packet processing of Cisco Nexus 5000, 6000, and 7000 Series Switches software could allow an unauthenticated, adjacent attacker to cause a reload of the affected device. Switches in the FabricPath domain crash because of an __inst_001__isis_fabricpath hap reset when processing a crafted link-state packet. More Information: CSCvc45002. Known Affected Releases: 7.1(3)N1(2.1) 7.1(3)N1(3.12) 7.3(2)N1(0.296) 8.0(1)S2. Known Fixed Releases: 6.2(18)S11 7.0(3)I5(1.170) 7.0(3)I5(2) 7.1(4)N1(0.4) 7.1(4)N1(1b) 7.1(5)N1(0.986) 7.1(5)N1(1) 7.2(3)D1(0.8) 7.3(2)N1(0.304) 7.3(2)N1(1) 8.0(0.96)S0 8.0(1) 8.0(1)E1 8.0(1)S4 8.3(0)CV(0.788).
Credit: ykramarz@cisco.com
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco Nx-os | =7.1\(3\)n1\(2.1\) | |
Cisco Nx-os | =7.1\(3\)n1\(3.12\) | |
Cisco Nx-os | =7.3\(2\)n1\(0.296\) | |
Cisco Nx-os | =8.0\(1\)s2 | |
Cisco Nexus 5000 | ||
Cisco Nexus 6001 | ||
Cisco Nexus 6004 | ||
Cisco Nexus 7000 |
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
The severity of CVE-2017-3804 is rated as medium with a score of 6.1.
To fix CVE-2017-3804, you should upgrade to a fixed version of Cisco NX-OS software that is not affected by this vulnerability.
CVE-2017-3804 affects Cisco Nexus 5000, 6000, and 7000 Series Switches running specific NX-OS versions.
CVE-2017-3804 requires an unauthenticated, adjacent attacker to exploit the vulnerability.
Exploitation of CVE-2017-3804 can cause an affected device to reload, leading to potential service disruption.