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Cisco FXOS and NX-OS Software Link Layer Discovery Protocol Denial of Service Vulnerability

cisco-sa-20181017-fxnx-os-dos · High · Published · Updated

A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when the device unexpectedly reloads. The vulnerability is due to improper input validation of certain type, length, value (TLV) fields of the LLDP frame header. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface on the targeted device. A successful exploit could allow the attacker to cause the switch to reload unexpectedly. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-fxnx-os-dos

Cisco advisory · CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2018-0395
Cisco Bug IDsCSCvf23367, CSCvj94174, CSCvj96148, CSCuc98542
CVSS ScoreBase 8.8
Base 8.8 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco Unified Computing System (Managed), Cisco Firepower Extensible Operating System (FXOS), Cisco NX-OS Software 4.1(2), Cisco NX-OS Software 4.1(3), Cisco NX-OS Software 4.1(4), Cisco NX-OS Software 4.1(5), Cisco NX-OS Software 5.0(2a), Cisco NX-OS Software 5.0(3), Cisco NX-OS Software 5.0(5), Cisco NX-OS Software 4.2(2a), Cisco NX-OS Software 4.2(3), Cisco NX-OS Software 4.2(4), Cisco NX-OS Software 4.2(6), Cisco NX-OS Software 4.2(8), Cisco NX-OS Software 5.1(1), Cisco NX-OS Software 5.1(1a), Cisco NX-OS Software 5.1(3), Cisco NX-OS Software 5.1(4), Cisco NX-OS Software 5.1(5), Cisco NX-OS Software 5.1(6), Cisco NX-OS Software 5.2(1), Cisco NX-OS Software 5.2(3a), Cisco NX-OS Software 5.2(4), Cisco NX-OS Software 5.2(5), Cisco NX-OS Software 5.2(7), Cisco NX-OS Software 5.2(3), Cisco NX-OS Software 4.0(0)N1(1a), Cisco NX-OS Software 4.0(0)N1(2), Cisco NX-OS Software 4.0(0)N1(2a), Cisco NX-OS Software 4.0(1a)N1(1), Cisco NX-OS Software 4.0(1a)N1(1a), Cisco NX-OS Software 4.0(1a)N2(1), Cisco NX-OS Software 4.0(1a)N2(1a), Cisco NX-OS Software 4.1(3)N1(1), Cisco NX-OS Software 4.1(3)N1(1a), Cisco NX-OS Software 4.1(3)N2(1), Cisco NX-OS Software 4.1(3)N2(1a), Cisco NX-OS Software 4.2(1)N1(1), Cisco NX-OS Software 4.2(1)N2(1), Cisco NX-OS Software 4.2(1)N2(1a), Cisco NX-OS Software 5.0(2)N1(1), Cisco NX-OS Software 5.0(2)N2(1), Cisco NX-OS Software 5.0(2)N2(1a), Cisco NX-OS Software 5.0(3)A1(1), Cisco NX-OS Software 5.0(3)A1(2), Cisco NX-OS Software 5.0(3)A1(2a), Cisco NX-OS Software 5.0(3)N1(1c), Cisco NX-OS Software 5.0(3)N1(1), Cisco NX-OS Software 5.0(3)N1(1a), Cisco NX-OS Software 5.0(3)N1(1b), Cisco NX-OS Software 5.0(3)N2(1), Cisco NX-OS Software 5.0(3)N2(2), Cisco NX-OS Software 5.0(3)N2(2a), Cisco NX-OS Software 5.0(3)N2(2b), Cisco NX-OS Software 5.0(3)U1(1), Cisco NX-OS Software 5.0(3)U1(1a), Cisco NX-OS Software 5.0(3)U1(1b), Cisco NX-OS Software 5.0(3)U1(1d), Cisco NX-OS Software 5.0(3)U1(2), Cisco NX-OS Software 5.0(3)U1(2a), Cisco NX-OS Software 5.0(3)U1(1c), Cisco NX-OS Software 5.0(3)U2(1), Cisco NX-OS Software 5.0(3)U2(2), Cisco NX-OS Software 5.0(3)U2(2a), Cisco NX-OS Software 5.0(3)U2(2b), Cisco NX-OS Software 5.0(3)U2(2c), Cisco NX-OS Software 5.0(3)U2(2d), Cisco NX-OS Software 5.0(3)U3(1), Cisco NX-OS Software 5.0(3)U3(2), Cisco NX-OS Software 5.0(3)U3(2a), Cisco NX-OS Software 5.0(3)U3(2b), Cisco NX-OS Software 5.0(3)U4(1), Cisco NX-OS Software 5.0(3)U5(1), Cisco NX-OS Software 5.0(3)U5(1a), Cisco NX-OS Software 5.0(3)U5(1b), Cisco NX-OS Software 5.0(3)U5(1c), Cisco NX-OS Software 5.0(3)U5(1d), Cisco NX-OS Software 5.0(3)U5(1e), Cisco NX-OS Software 5.0(3)U5(1f), Cisco NX-OS Software 5.0(3)U5(1g), Cisco NX-OS Software 5.0(3)U5(1h), Cisco NX-OS Software 5.0(3)U5(1i), Cisco NX-OS Software 5.0(3)U5(1j), Cisco NX-OS Software 5.1(3)N1(1), Cisco NX-OS Software 5.1(3)N1(1a), Cisco NX-OS Software 5.1(3)N2(1), Cisco NX-OS Software 5.1(3)N2(1a), Cisco NX-OS Software 5.1(3)N2(1b), Cisco NX-OS Software 5.1(3)N2(1c), Cisco NX-OS Software 5.2(1)N1(1), Cisco NX-OS Software 5.2(1)N1(1a), Cisco NX-OS Software 5.2(1)N1(1b), Cisco NX-OS Software 5.2(1)N1(2), Cisco NX-OS Software 5.2(1)N1(2a), Cisco NX-OS Software 5.2(1)N1(3), Cisco NX-OS Software 5.2(1)N1(4), Cisco NX-OS Software 5.2(1)N1(5), Cisco NX-OS Software 5.2(1)N1(6), Cisco NX-OS Software 5.2(1)N1(7), Cisco NX-OS Software 5.2(1)N1(8a), Cisco NX-OS Software 5.2(1)N1(8), Cisco NX-OS Software 5.2(1)N1(8b), Cisco NX-OS Software 5.2(1)N1(9), Cisco NX-OS Software 5.2(1)N1(9a), Cisco NX-OS Software 5.2(1)N1(9b), Cisco NX-OS Software 5.2(9)N1(1), Cisco NX-OS Software 6.0(1), Cisco NX-OS Software 6.0(2), Cisco NX-OS Software 6.0(3), Cisco NX-OS Software 6.0(4), Cisco NX-OS Software 6.0(2)A1(1), Cisco NX-OS Software 6.0(2)A1(1a), Cisco NX-OS Software 6.0(2)N1(1), Cisco NX-OS Software 6.0(2)N1(2), Cisco NX-OS Software 6.0(2)N1(2a), Cisco NX-OS Software 6.0(2)N1(1a), Cisco NX-OS Software 6.0(2)N2(1), Cisco NX-OS Software 6.0(2)N2(1b), Cisco NX-OS Software 6.0(2)N2(2), Cisco NX-OS Software 6.0(2)N2(3), Cisco NX-OS Software 6.0(2)N2(4), Cisco NX-OS Software 6.0(2)N2(5), Cisco NX-OS Software 6.0(2)N2(5a), Cisco NX-OS Software 6.0(2)N2(6), Cisco NX-OS Software 6.0(2)N2(7), Cisco NX-OS Software 6.0(2)U1(1), Cisco NX-OS Software 6.0(2)U1(1a), Cisco NX-OS Software 8.0(1)S2, Cisco NX-OS System Software in ACI Mode 11.0(1b), Cisco NX-OS System Software in ACI Mode 11.0(1c), Cisco NX-OS System Software in ACI Mode 11.0(1d), Cisco NX-OS System Software in ACI Mode 11.0(1e), Cisco NX-OS System Software in ACI Mode 11.0(2j), Cisco NX-OS System Software in ACI Mode 11.0(2m), Cisco NX-OS System Software in ACI Mode 11.0(3f), Cisco NX-OS System Software in ACI Mode 11.0(3i), Cisco NX-OS System Software in ACI Mode 11.0(3k), Cisco NX-OS System Software in ACI Mode 11.0(3n), Cisco NX-OS System Software in ACI Mode 11.0(3o), Cisco NX-OS System Software in ACI Mode 11.0(4h), Cisco NX-OS System Software in ACI Mode 11.0(4o), Cisco NX-OS System Software in ACI Mode 11.0(4q), Cisco NX-OS System Software in ACI Mode 11.1(1j), Cisco NX-OS System Software in ACI Mode 11.1(1o), Cisco NX-OS System Software in ACI Mode 11.1(1r), Cisco NX-OS System Software in ACI Mode 11.1(1s), Cisco NX-OS System Software in ACI Mode 11.1(2h), Cisco NX-OS System Software in ACI Mode 11.1(2i), Cisco NX-OS System Software in ACI Mode 11.1(3f), Cisco NX-OS System Software in ACI Mode 11.1(4e), Cisco NX-OS System Software in ACI Mode 11.2(1i), Cisco NX-OS System Software in ACI Mode 11.2(2g), Cisco NX-OS System Software in ACI Mode 11.2(3c), Cisco NX-OS System Software in ACI Mode 11.2(2h), Cisco NX-OS System Software in ACI Mode 11.2(2i), Cisco NX-OS System Software in ACI Mode 11.2(3e), Cisco NX-OS System Software in ACI Mode 11.2(3h), Cisco NX-OS System Software in ACI Mode 11.2(3m), Cisco NX-OS System Software in ACI Mode 12.0(1m), Cisco NX-OS System Software in ACI Mode 12.0(2g), Cisco NX-OS System Software in ACI Mode 12.0(1n), Cisco NX-OS System Software in ACI Mode 12.0(1o), Cisco NX-OS System Software in ACI Mode 12.0(1p), Cisco NX-OS System Software in ACI Mode 12.0(1q), Cisco NX-OS System Software in ACI Mode 12.0(2h), Cisco NX-OS System Software in ACI Mode 12.0(2l), Cisco NX-OS System Software in ACI Mode 12.0(2m), Cisco NX-OS System Software in ACI Mode 12.0(2n), Cisco NX-OS System Software in ACI Mode 12.0(2o), Cisco NX-OS System Software in ACI Mode 12.0(2f), Cisco NX-OS System Software in ACI Mode 12.1(1h), Cisco NX-OS System Software in ACI Mode 12.1(2e), Cisco NX-OS System Software in ACI Mode 12.1(3g), Cisco NX-OS System Software in ACI Mode 12.1(4a), Cisco NX-OS System Software in ACI Mode 12.1(1i), Cisco NX-OS System Software in ACI Mode 12.1(2g), Cisco NX-OS System Software in ACI Mode 12.1(2k), Cisco NX-OS System Software in ACI Mode 12.1(3h), Cisco NX-OS System Software in ACI Mode 12.1(3j), Cisco NX-OS System Software in ACI Mode 12.2(1n), Cisco NX-OS System Software in ACI Mode 12.2(2e), Cisco NX-OS System Software in ACI Mode 12.2(3j), Cisco NX-OS System Software in ACI Mode 12.2(4f), Cisco NX-OS System Software in ACI Mode 12.2(4p), Cisco NX-OS System Software in ACI Mode 12.2(3p), Cisco NX-OS System Software in ACI Mode 12.2(3r), Cisco NX-OS System Software in ACI Mode 12.2(3s), Cisco NX-OS System Software in ACI Mode 12.2(3t), Cisco NX-OS System Software in ACI Mode 12.2(2f), Cisco NX-OS System Software in ACI Mode 12.2(2g), Cisco NX-OS System Software in ACI Mode 12.2(2i), Cisco NX-OS System Software in ACI Mode 12.2(2j), Cisco NX-OS System Software in ACI Mode 12.2(2k), Cisco NX-OS System Software in ACI Mode 12.2(2q), Cisco NX-OS System Software in ACI Mode 12.2(1o), Cisco NX-OS System Software in ACI Mode 12.3(1e), Cisco NX-OS System Software in ACI Mode 12.3(1f), Cisco NX-OS System Software in ACI Mode 12.3(1i), Cisco NX-OS System Software in ACI Mode 12.3(1l), Cisco NX-OS System Software in ACI Mode 12.3(1o), Cisco NX-OS System Software in ACI Mode 12.3(1p), Cisco NX-OS System Software in ACI Mode 13.0(1k), Cisco NX-OS System Software in ACI Mode 13.0(2h), Cisco NX-OS System Software in ACI Mode 13.0(2k), Cisco NX-OS System Software in ACI Mode 13.0(2n), Cisco NX-OS System Software in ACI Mode 13.1(1i), Cisco NX-OS System Software in ACI Mode 13.1(2m), Cisco NX-OS System Software in ACI Mode 13.1(2o), Cisco NX-OS System Software in ACI Mode 13.1(2p), Cisco NX-OS System Software in ACI Mode 13.1(2q), Cisco NX-OS System Software in ACI Mode 13.2(1l), Cisco NX-OS System Software in ACI Mode 13.2(1m), Cisco NX-OS System Software in ACI Mode 11.3(1g), Cisco NX-OS System Software in ACI Mode 11.3(2f), Cisco NX-OS System Software in ACI Mode 11.3(1h), Cisco NX-OS System Software in ACI Mode 11.3(1i), Cisco NX-OS System Software in ACI Mode 11.3(2h), Cisco NX-OS System Software in ACI Mode 11.3(2i), Cisco NX-OS System Software in ACI Mode 11.3(2k), Cisco NX-OS System Software in ACI Mode, Cisco NX-OS Software

Related Products

Product CVE Evidence
Firepower Extensible Operating System CVE-2018-0395 Cisco OpenVuln
Cisco Unified Computing System (Managed) CVE-2018-0395 Cisco OpenVuln
Cisco NX-OS System Software in ACI Mode CVE-2018-0395 Cisco OpenVuln
Cisco NX-OS Software CVE-2018-0395 Cisco OpenVuln
Cisco Firepower Extensible Operating System (FXOS) CVE-2018-0395 Cisco OpenVuln
Cisco Firepower Extensible Operating System CVE-2018-0395 Cisco OpenVuln