PT-2019-1562 · Cisco · Cisco Nx-Os+4

Published 2019-03-06 · Updated 2019-10-09 · CVE-2019-1616

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco NX-OS Software versions prior to 6.2(25) Cisco NX-OS Software versions prior to 8.1(1b) Cisco NX-OS Software versions prior to 8.2(3) Cisco NX-OS Software versions prior to 8.3(1) Cisco NX-OS Software versions prior to 7.0(3)I4(9) Cisco NX-OS Software versions prior to 7.0(3)I7(4) Cisco NX-OS Software versions prior to 6.0(2)A8(10) Cisco NX-OS Software versions prior to 7.0(3)F3(5) UCS 6200, 6300, and 6400 Fabric Interconnects versions prior to 3.2(3j) UCS 6200, 6300, and 6400 Fabric Interconnects versions prior to 4.0(2a)

Description A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a buffer overflow, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of 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 overflow, resulting in process crashes and a DoS condition on the device.

Recommendations For Cisco NX-OS Software versions prior to 6.2(25), update to version 6.2(25) or later. For Cisco NX-OS Software versions prior to 8.1(1b), update to version 8.1(1b) or later. For Cisco NX-OS Software versions prior to 8.2(3), update to version 8.2(3) or later. For Cisco NX-OS Software versions prior to 8.3(1), update to version 8.3(1) or later. For Cisco NX-OS Software versions prior to 7.0(3)I4(9), update to version 7.0(3)I4(9) or later. For Cisco NX-OS Software versions prior to 7.0(3)I7(4), update to version 7.0(3)I7(4) or later. For Cisco NX-OS Software versions prior to 6.0(2)A8(10), update to version 6.0(2)A8(10) or later. For Cisco NX-OS Software versions prior to 7.0(3)F3(5), update to version 7.0(3)F3(5) or later. For UCS 6200, 6300, and 6400 Fabric Interconnects versions prior to 3.2(3j), update to version 3.2(3j) or later. For UCS 6200, 6300, and 6400 Fabric Interconnects versions prior to 4.0(2a), update to version 4.0(2a) or later.

Fix

DoS

RCE

Buffer Overflow

Weakness Enumeration

CWE-20

CWE-119

Related Identifiers

BDU:2019-01093

CVE-2019-1616

Affected Products

Cisco Nx-Os

Cisco Nexus

Ucs 6200

Ucs 6300

Ucs 6400

References · 5

• https://bdu.fstec.ru/vul/2019-01093 · Security Note
• https://osv.dev/vulnerability/CVE-2019-1616 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1616 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-fabric-dos · Vendor Advisory
• http://securityfocus.com/bid/107395 · Note