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 is 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 Unchanged
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.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
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Cisco |
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Configuration 1 [-]
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No data.
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2019-03-27T23:20:12.539060Z
Updated: 2024-09-16T20:07:37.827Z
Reserved: 2018-12-06T00:00:00
Link: CVE-2019-1739
Vulnrichment
No data.
NVD
Status : Modified
Published: 2019-03-28T00:29:00.340
Modified: 2024-11-21T04:37:14.907
Link: CVE-2019-1739
Redhat
No data.