CVE-2017-3804 : A vulnerability in Intermediate System-to-Intermediate System (IS-IS) protocol p

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).

Published 2017-01-26 07:59:01

Updated 2019-10-03 00:03:26

Source Cisco Systems, Inc.

View at NVD, CVE.org

Products affected by CVE-2017-3804

Cisco » Nx-os » Version: 8.0(1)s2
cpe:2.3:o:cisco:nx-os:8.0\(1\)s2:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5000 » Version: N/A
When used together with: Cisco » Nexus 6001 » Version: N/A
When used together with: Cisco » Nexus 6004 » Version: N/A
When used together with: Cisco » Nexus 7000 » Version: N/A
Cisco » Nx-os » Version: 7.3(2)n1(0.296)
cpe:2.3:o:cisco:nx-os:7.3\(2\)n1\(0.296\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5000 » Version: N/A
When used together with: Cisco » Nexus 6001 » Version: N/A
When used together with: Cisco » Nexus 6004 » Version: N/A
When used together with: Cisco » Nexus 7000 » Version: N/A
Cisco » Nx-os » Version: 7.1(3)n1(3.12)
cpe:2.3:o:cisco:nx-os:7.1\(3\)n1\(3.12\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5000 » Version: N/A
When used together with: Cisco » Nexus 6001 » Version: N/A
When used together with: Cisco » Nexus 6004 » Version: N/A
When used together with: Cisco » Nexus 7000 » Version: N/A
Cisco » Nx-os » Version: 7.1(3)n1(2.1)
cpe:2.3:o:cisco:nx-os:7.1\(3\)n1\(2.1\):*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5000 » Version: N/A
When used together with: Cisco » Nexus 6001 » Version: N/A
When used together with: Cisco » Nexus 6004 » Version: N/A
When used together with: Cisco » Nexus 7000 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2017-3804

EPSS FAQ

0.09%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 38 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-3804

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.7	MEDIUM	AV:A/AC:M/Au:N/C:N/I:N/A:C	5.5	6.9	NIST
Access Vector: Adjacent Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
6.1	MEDIUM	CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H	1.6	4.0	NIST
Attack Vector: Adjacent Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High

References for CVE-2017-3804

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-nexus

Cisco Nexus 5000, 6000, and 7000 Series Switches Software IS-IS Packet Processing Denial of Service Vulnerability
Vendor Advisory
http://www.securitytracker.com/id/1037658

Cisco Nexus 5000/6000/7000 Series Switches IS-IS Packet Processing Flaw Lets Remote Users Cause the Target System to Reload - SecurityTracker
http://www.securityfocus.com/bid/95638

Multiple Cisco Nexus Devices CVE-2017-3804 Denial of Service Vulnerability
Third Party Advisory;VDB Entry

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Vulnerability Details : CVE-2017-3804

Products affected by CVE-2017-3804

Exploit prediction scoring system (EPSS) score for CVE-2017-3804

CVSS scores for CVE-2017-3804

References for CVE-2017-3804