7.4
CWE
400 388
Advisory Published
Updated

CVE-2020-3512: Cisco IOS and IOS XE Software PROFINET Link Layer Discovery Protocol Denial of Service Vulnerability

First published: Thu Sep 24 2020(Updated: )

A vulnerability in the PROFINET handler for Link Layer Discovery Protocol (LLDP) messages of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a crash on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of LLDP messages in the PROFINET LLDP message handler. An attacker could exploit this vulnerability by sending a malicious LLDP message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS XE=15.2\(7\)e
Cisco Catalyst 3650-12x48uq
Cisco Catalyst 3650-12x48ur
Cisco Catalyst 3650-12x48uz
Cisco Catalyst 3650-24pd
Cisco Catalyst 3650-24pdm
Cisco Catalyst 3650-48fqm
Cisco Catalyst 3650-8x24uq
Cisco Catalyst 3850-24xs
Cisco Catalyst 3850-48xs
Cisco Catalyst 3850-nm-2-40g
Cisco Catalyst 3850-nm-8-10g
Cisco Catalyst C9200-24p
Cisco Catalyst C9200-24t
Cisco Catalyst C9200-48p
Cisco Catalyst C9200-48t
Cisco Catalyst C9200l-24p-4g
Cisco Catalyst C9200l-24p-4x
Cisco Catalyst C9200l-24pxg-2y
Cisco Catalyst C9200l-24pxg-4x
Cisco Catalyst C9200l-24t-4g
Cisco Catalyst C9200l-24t-4x
Cisco Catalyst C9200l-48p-4g
Cisco Catalyst C9200l-48p-4x
Cisco Catalyst C9200l-48pxg-2y
Cisco Catalyst C9200l-48pxg-4x
Cisco Catalyst C9200l-48t-4g
Cisco Catalyst C9200l-48t-4x
Cisco Catalyst C9300-24p
Cisco Catalyst C9300-24s
Cisco Catalyst C9300-24t
Cisco Catalyst C9300-24u
Cisco Catalyst C9300-24ux
Cisco Catalyst C9300-48p
Cisco Catalyst C9300-48s
Cisco Catalyst C9300-48t
Cisco Catalyst C9300-48u
Cisco Catalyst C9300-48un
Cisco Catalyst C9300-48uxm
Cisco Catalyst C9300l-24p-4g
Cisco Catalyst C9300l-24p-4x
Cisco Catalyst C9300l-24t-4g
Cisco Catalyst C9300l-24t-4x
Cisco Catalyst C9300l-48p-4g
Cisco Catalyst C9300l-48p-4x
Cisco Catalyst C9300l-48t-4g
Cisco Catalyst C9300l-48t-4x
Cisco Catalyst C9404r
Cisco Catalyst C9407r
Cisco Catalyst C9410r
Cisco Catalyst C9500-12q
Cisco Catalyst C9500-16x
Cisco Catalyst C9500-24q
Cisco Catalyst C9500-24y4c
Cisco Catalyst C9500-32c
Cisco Catalyst C9500-32qc
Cisco Catalyst C9500-40x
Cisco Catalyst C9500-48y4c
Cisco Connected Grid Switch 2520
Cisco Ess 2020
Cisco Ess 3300
Cisco Ie-1000
Cisco Ie-2000u-16tc-g
Cisco Ie-2000u-16tc-g-x
Cisco Ie-2000u-16tc-gp
Cisco Ie-2000u-4s-g
Cisco Ie-2000u-4t-gs
Cisco Ie-2000u-4ts-g
Cisco Ie-2000u-8tc-g
Cisco Ie-3000
Cisco Ie-3010-16s-8pc Industrial Ethernet Switch
Cisco Ie-3010-24tc Industrial Ethernet Switch
Cisco Ie-3200-8p2s-e
Cisco Ie-3200-8t2s-e
Cisco Ie-3300-8p2s-a
Cisco Ie-3300-8p2s-e
Cisco Ie-3300-8t2s-a
Cisco Ie-3300-8t2s-e
Cisco Ie-3300-8t2x-a
Cisco Ie-3300-8t2x-e
Cisco Ie-3300-8u2x-a
Cisco Ie-3300-8u2x-e
Cisco Ie-3400-8p2s-a
Cisco Ie-3400-8p2s-e
Cisco Ie-3400-8t2s-a
Cisco Ie-3400-8t2s-e
Cisco Ie-4000-16gt4g-e
Cisco Ie-4000-16t4g-e
Cisco Ie-4000-4gc4gp4g-e
Cisco Ie-4000-4gs8gp4g-e
Cisco Ie-4000-4s8p4g-e
Cisco Ie-4000-4t4p4g-e
Cisco Ie-4000-4tc4g-e
Cisco Ie-4000-8gs4g-e
Cisco Ie-4000-8gt4g-e
Cisco Ie-4000-8gt8gp4g-e
Cisco Ie-4000-8s4g-e
Cisco Ie-4000-8t4g-e
Cisco Ie-4010-16s12p Industrial Ethernet Switch
Cisco Ie-4010-4s24p Industrial Ethernet Switch
Cisco Ie-5000-12s12p-10g
Cisco Ie-5000-16s12p
Cisco Ie 2000-16ptc-g Industrial Ethernet Switch
Cisco Ie 2000-16t67 Industrial Ethernet Switch
Cisco Ie 2000-16t67p Industrial Ethernet Switch
Cisco Ie 2000-16tc-g-e Industrial Ethernet Switch
Cisco Ie 2000-16tc-g-n Industrial Ethernet Switch
Cisco Ie 2000-16tc-g-x Industrial Ethernet Switch
Cisco Ie 2000-16tc-g Industrial Ethernet Switch
Cisco Ie 2000-16tc Industrial Ethernet Switch
Cisco Ie 2000-24t67 Industrial Ethernet Switch
Cisco Ie 2000-4s-ts-g Industrial Ethernet Switch
Cisco Ie 2000-4t-g Industrial Ethernet Switch
Cisco Ie 2000-4t Industrial Ethernet Switch
Cisco Ie 2000-4ts-g Industrial Ethernet Switch
Cisco Ie 2000-4ts Industrial Ethernet Switch
Cisco Ie 2000-8t67 Industrial Ethernet Switch
Cisco Ie 2000-8t67p Industrial Ethernet Switch
Cisco Ie 2000-8tc-g-e Industrial Ethernet Switch
Cisco Ie 2000-8tc-g-n Industrial Ethernet Switch
Cisco Ie 2000-8tc-g Industrial Ethernet Switch
Cisco Iem-3300-14t2s
Cisco Iem-3300-16p
Cisco Iem-3300-16t
Cisco Iem-3300-4mu-2
Cisco Iem-3300-6t2s
Cisco Iem-3300-8p
Cisco Iem-3300-8s
Cisco Iem-3300-8t
Cisco Iem-3400-8p
Cisco Iem-3400-8s
Cisco Iem-3400-8t

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