CVE-2020-3408
Summary
| CVE | CVE-2020-3408 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-09-24 18:15:00 UTC |
| Updated | 2023-05-23 13:55:00 UTC |
| Description | A vulnerability in the Split DNS feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability occurs because the regular expression (regex) engine that is used with the Split DNS feature of affected releases may time out when it processes the DNS name list configuration. An attacker could exploit this vulnerability by trying to resolve an address or hostname that the affected device handles. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. |
Risk And Classification
Problem Types: CWE-400
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Cisco | 1100-4gltegb Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1100-4gltena Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1100-4g Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1100-4p Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1100-6g Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1100-8p Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1100-lte Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1100 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1101-4p Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1101 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1109-2p Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1109-4p Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1109 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1111x-8p Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1111x Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 111x Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1120 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 1160 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 4221 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 4331 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 4431 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 4451 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | 4461 Integrated Services Router | - | All | All | All |
| Hardware | Cisco | Asr1001-hx | - | All | All | All |
| Hardware | Cisco | Asr1001-hx | - | All | All | All |
| Hardware | Cisco | Asr1001-hx-rf | - | All | All | All |
| Hardware | Cisco | Asr1001-hx-rf | - | All | All | All |
| Hardware | Cisco | Asr1001-x-rf | - | All | All | All |
| Hardware | Cisco | Asr1001-x-rf | - | All | All | All |
| Hardware | Cisco | Asr1001-x-ws | - | All | All | All |
| Hardware | Cisco | Asr1001-x-ws | - | All | All | All |
| Hardware | Cisco | Asr1002-hx | - | All | All | All |
| Hardware | Cisco | Asr1002-hx | - | All | All | All |
| Hardware | Cisco | Asr1002-hx-rf | - | All | All | All |
| Hardware | Cisco | Asr1002-hx-rf | - | All | All | All |
| Hardware | Cisco | Asr1002-hx-ws | - | All | All | All |
| Hardware | Cisco | Asr1002-hx-ws | - | All | All | All |
| Hardware | Cisco | Asr1002-x-rf | - | All | All | All |
| Hardware | Cisco | Asr1002-x-rf | - | All | All | All |
| Hardware | Cisco | Asr1002-x-ws | - | All | All | All |
| Hardware | Cisco | Asr1002-x-ws | - | All | All | All |
| Hardware | Cisco | Asr 1000-x | - | All | All | All |
| Hardware | Cisco | Asr 1000-x | - | All | All | All |
| Hardware | Cisco | Asr 1001 | - | All | All | All |
| Hardware | Cisco | Asr 1001 | - | All | All | All |
| Hardware | Cisco | Asr 1001-x | - | All | All | All |
| Hardware | Cisco | Asr 1001-x | - | All | All | All |
| Hardware | Cisco | Asr 1002 | - | All | All | All |
| Hardware | Cisco | Asr 1002 | - | All | All | All |
| Hardware | Cisco | Asr 1002-x | - | All | All | All |
| Hardware | Cisco | Asr 1002-x | - | All | All | All |
| Hardware | Cisco | Asr 1004 | - | All | All | All |
| Hardware | Cisco | Asr 1004 | - | All | All | All |
| Hardware | Cisco | Asr 1006 | - | All | All | All |
| Hardware | Cisco | Asr 1006 | - | All | All | All |
| Hardware | Cisco | Asr 1013 | - | All | All | All |
| Hardware | Cisco | Asr 1013 | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-40 | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-40 | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-80 | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-80 | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-cl | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-cl | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-l | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-l | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-l-c | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-l-c | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-l-f | - | All | All | All |
| Hardware | Cisco | Catalyst 9800-l-f | - | All | All | All |
| Hardware | Cisco | Catalyst C9200-24p | - | All | All | All |
| Hardware | Cisco | Catalyst C9200-24p | - | All | All | All |
| Hardware | Cisco | Catalyst C9200-24t | - | All | All | All |
| Hardware | Cisco | Catalyst C9200-24t | - | All | All | All |
| Hardware | Cisco | Catalyst C9200-48p | - | All | All | All |
| Hardware | Cisco | Catalyst C9200-48p | - | All | All | All |
| Hardware | Cisco | Catalyst C9200-48t | - | All | All | All |
| Hardware | Cisco | Catalyst C9200-48t | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24p-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24p-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24p-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24p-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24pxg-2y | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24pxg-2y | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24pxg-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24pxg-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24t-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24t-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24t-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-24t-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48p-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48p-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48p-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48p-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48pxg-2y | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48pxg-2y | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48pxg-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48pxg-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48t-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48t-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48t-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9200l-48t-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24p | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24p | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24s | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24s | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24t | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24t | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24u | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24u | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24ux | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-24ux | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48p | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48p | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48s | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48s | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48t | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48t | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48u | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48u | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48un | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48un | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48uxm | - | All | All | All |
| Hardware | Cisco | Catalyst C9300-48uxm | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-24p-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-24p-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-24p-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-24p-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-24t-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-24t-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-24t-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-24t-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-48p-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-48p-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-48p-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-48p-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-48t-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-48t-4g | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-48t-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9300l-48t-4x | - | All | All | All |
| Hardware | Cisco | Catalyst C9404r | - | All | All | All |
| Hardware | Cisco | Catalyst C9404r | - | All | All | All |
| Hardware | Cisco | Catalyst C9407r | - | All | All | All |
| Hardware | Cisco | Catalyst C9407r | - | All | All | All |
| Hardware | Cisco | Catalyst C9410r | - | All | All | All |
| Hardware | Cisco | Catalyst C9410r | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-12q | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-12q | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-16x | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-16x | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-24q | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-24q | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-24y4c | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-24y4c | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-32c | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-32c | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-32qc | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-32qc | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-40x | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-40x | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-48y4c | - | All | All | All |
| Hardware | Cisco | Catalyst C9500-48y4c | - | All | All | All |
| Hardware | Cisco | Csr 1000v | All | All | All | All |
| Hardware | Cisco | Csr 1000v | All | All | All | All |
| Hardware | Cisco | Integrated Services Router 4221 | - | All | All | All |
| Hardware | Cisco | Integrated Services Router 4221 | - | All | All | All |
| Hardware | Cisco | Integrated Services Router 4331 | - | All | All | All |
| Hardware | Cisco | Integrated Services Router 4331 | - | All | All | All |
| Hardware | Cisco | Integrated Services Router 4431 | - | All | All | All |
| Hardware | Cisco | Integrated Services Router 4431 | - | All | All | All |
| Hardware | Cisco | Integrated Services Router 4451 | - | All | All | All |
| Hardware | Cisco | Integrated Services Router 4451 | - | All | All | All |
| Hardware | Cisco | Integrated Services Router 4461 | - | All | All | All |
| Hardware | Cisco | Integrated Services Router 4461 | - | All | All | All |
| Application | Cisco | Ios | 15.8\(3\)m3 | All | All | All |
| Operating System | Cisco | Ios | 15.8\(3\)m3 | All | All | All |
| Application | Cisco | Ios | 15.8\(3\)m3 | All | All | All |
| Application | Cisco | Ios Xe | 15.8\(3\)m3 | All | All | All |
| Operating System | Cisco | Ios Xe | 15.8\(3\)m3 | All | All | All |
| Application | Cisco | Ios Xe | 15.8\(3\)m3 | All | All | All |
| Hardware | Cisco | Isr1100 | - | All | All | All |
| Hardware | Cisco | Isr1100 | - | All | All | All |
| Hardware | Cisco | Isr1100-4g | - | All | All | All |
| Hardware | Cisco | Isr1100-4g | - | All | All | All |
| Hardware | Cisco | Isr1100-4gltegb | - | All | All | All |
| Hardware | Cisco | Isr1100-4gltegb | - | All | All | All |
| Hardware | Cisco | Isr1100-4gltena | - | All | All | All |
| Hardware | Cisco | Isr1100-4gltena | - | All | All | All |
| Hardware | Cisco | Isr1100-6g | - | All | All | All |
| Hardware | Cisco | Isr1100-6g | - | All | All | All |
| Hardware | Cisco | Isr1100-lte | - | All | All | All |
| Hardware | Cisco | Isr1100-lte | - | All | All | All |
| Hardware | Cisco | Isr 1100-4p | - | All | All | All |
| Hardware | Cisco | Isr 1100-4p | - | All | All | All |
| Hardware | Cisco | Isr 1100-8p | - | All | All | All |
| Hardware | Cisco | Isr 1100-8p | - | All | All | All |
| Hardware | Cisco | Isr 1101 | - | All | All | All |
| Hardware | Cisco | Isr 1101 | - | All | All | All |
| Hardware | Cisco | Isr 1101-4p | - | All | All | All |
| Hardware | Cisco | Isr 1101-4p | - | All | All | All |
| Hardware | Cisco | Isr 1109 | - | All | All | All |
| Hardware | Cisco | Isr 1109 | - | All | All | All |
| Hardware | Cisco | Isr 1109-2p | - | All | All | All |
| Hardware | Cisco | Isr 1109-2p | - | All | All | All |
| Hardware | Cisco | Isr 1109-4p | - | All | All | All |
| Hardware | Cisco | Isr 1109-4p | - | All | All | All |
| Hardware | Cisco | Isr 1111x | - | All | All | All |
| Hardware | Cisco | Isr 1111x | - | All | All | All |
| Hardware | Cisco | Isr 1111x-8p | - | All | All | All |
| Hardware | Cisco | Isr 1111x-8p | - | All | All | All |
| Hardware | Cisco | Isr 111x | - | All | All | All |
| Hardware | Cisco | Isr 111x | - | All | All | All |
| Hardware | Cisco | Isr 1120 | - | All | All | All |
| Hardware | Cisco | Isr 1120 | - | All | All | All |
| Hardware | Cisco | Isr 1160 | - | All | All | All |
| Hardware | Cisco | Isr 1160 | - | All | All | All |
| Hardware | Cisco | Ws-c3650-12x48uq | - | All | All | All |
| Hardware | Cisco | Ws-c3650-12x48uq | - | All | All | All |
| Hardware | Cisco | Ws-c3650-12x48ur | - | All | All | All |
| Hardware | Cisco | Ws-c3650-12x48ur | - | All | All | All |
| Hardware | Cisco | Ws-c3650-12x48uz | - | All | All | All |
| Hardware | Cisco | Ws-c3650-12x48uz | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24pd | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24pd | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24pdm | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24pdm | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24ps | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24ps | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24td | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24td | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24ts | - | All | All | All |
| Hardware | Cisco | Ws-c3650-24ts | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48fd | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48fd | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48fq | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48fq | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48fqm | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48fqm | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48fs | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48fs | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48pd | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48pd | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48pq | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48pq | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48ps | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48ps | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48td | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48td | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48tq | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48tq | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48ts | - | All | All | All |
| Hardware | Cisco | Ws-c3650-48ts | - | All | All | All |
| Hardware | Cisco | Ws-c3650-8x24uq | - | All | All | All |
| Hardware | Cisco | Ws-c3650-8x24uq | - | All | All | All |
| Hardware | Cisco | Ws-c3850 | - | All | All | All |
| Hardware | Cisco | Ws-c3850 | - | All | All | All |
| Hardware | Cisco | Ws-c3850-12s | - | All | All | All |
| Hardware | Cisco | Ws-c3850-12s | - | All | All | All |
| Hardware | Cisco | Ws-c3850-12x48u | - | All | All | All |
| Hardware | Cisco | Ws-c3850-12x48u | - | All | All | All |
| Hardware | Cisco | Ws-c3850-12xs | - | All | All | All |
| Hardware | Cisco | Ws-c3850-12xs | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24p | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24p | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24s | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24s | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24t | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24t | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24u | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24u | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24xs | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24xs | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24xu | - | All | All | All |
| Hardware | Cisco | Ws-c3850-24xu | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48f | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48f | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48p | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48p | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48t | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48t | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48u | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48u | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48xs | - | All | All | All |
| Hardware | Cisco | Ws-c3850-48xs | - | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Cisco IOS and IOS XE Software Split DNS Denial of Service Vulnerability | CISCO | tools.cisco.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.