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.
References
Link | Resource |
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-nbar | Patch Vendor Advisory |
http://www.securityfocus.com/bid/107597 | Third Party Advisory VDB Entry |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Information
Published : 2019-03-27 17:29
Updated : 2022-03-18 12:40
NVD link : CVE-2019-1740
Mitre link : CVE-2019-1740
JSON object : View
CWE
CWE-20
Improper Input Validation
Products Affected
cisco
- ios
- ios_xe