A vulnerability in the Network-Based Application Recognition (NBAR) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability are due to a parsing issue on DNS packets. An attacker could exploit this vulnerability by sending crafted DNS packets through routers that are running an affected version and have NBAR enabled. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
Metrics
No CVSS v4.0
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
Exploitation none
Automatable yes
Technical Impact partial
Affected Vendors & Products
Vendors | Products |
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Cisco |
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Configuration 1 [-]
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Configuration 2 [-]
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No data.
References
History
Tue, 19 Nov 2024 20:15:00 +0000
Type | Values Removed | Values Added |
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Metrics |
ssvc
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MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2019-03-27T23:25:18.976554Z
Updated: 2024-11-19T19:13:41.033Z
Reserved: 2018-12-06T00:00:00
Link: CVE-2019-1740
Vulnrichment
Updated: 2024-08-04T18:28:41.981Z
NVD
Status : Analyzed
Published: 2019-03-28T00:29:00.373
Modified: 2022-03-18T19:40:47.180
Link: CVE-2019-1740
Redhat
No data.