Cisco IOS Software NAT64 Denial of Service Vulnerability
A vulnerability in the Network Address Translation 64 (NAT64) functions of Cisco IOS Software could allow an unauthenticated, remote attacker to cause either an interface queue wedge or a device reload. The vulnerability is due to the incorrect handling of certain IPv4 packet streams that are sent through the device. An attacker could exploit this vulnerability by sending specific IPv4 packet streams through the device. An exploit could allow the attacker to either cause an interface queue wedge or a device reload, resulting in a denial of service (DoS) condition. 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-20190327-nat64 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-nat64"] This advisory is part of the March 27, 2019, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 17 Cisco Security Advisories that describe 19 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: March 2019 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-71135"].
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2019-1751US | high7.5 | — | ||
A vulnerability in the Network Address Translation 64 (NAT64) functions of Cisco IOS Software could allow an unauthenticated, remote attacker to cause either an interface queue wed… | ||||
references
External citations — patches, advisories, analysis.
- Cisco IOS Queue Wedges Explainedexternal
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-nat64external
- Security Vulnerability Policyexternal
- Cisco IOS Software Checkerexternal
- Cisco Event Response: March 2019 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publicationexternal
- https://supportforums.cisco.com/docs/DOC-19337external
- Cisco IOS and NX-OS Software Reference Guideexternal
- https://www.cisco.com/c/en/us/products/end-user-license-agreement.htmlexternal
remediations (103)
- Fixed15.1(3)SVR1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVR10
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVR2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVR3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVS
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVS1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVT1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVT2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVT3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVT4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVU1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVU10
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVU11
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVU2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVU20
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVU21
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVV1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVV2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVV3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVV4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVW
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVW1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVX
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.1(3)SVX1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(1)CG1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(1)T
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(1)T1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(1)T2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(1)T3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(1)T4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(2)T
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(2)T1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(2)T2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(2)T3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(2)T4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M10
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M5
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M6
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M6a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M7
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M7a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M8
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.4(3)M9
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(1)T
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(1)T1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(1)T2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(1)T3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(1)T4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(2)T
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(2)T1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(2)T2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(2)T3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(2)T4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(2)XB
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M0a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M2a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M4a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M4b
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M4c
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M5
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M6
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M6a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M7
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.5(3)M8
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(1)T
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(1)T0a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(1)T1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(1)T2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(1)T3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(2)T
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(2)T0a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(2)T1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(2)T2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(2)T3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M0a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M1a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M1b
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M2a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M3a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.6(3)M5
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.7(3)M
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.7(3)M0a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.7(3)M1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.7(3)M2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.7(3)M3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.8(3)M
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.8(3)M0a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed15.8(3)M0b
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
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