Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Cisco / Cisco IOS and Cisco IOS-XE Software | affected 3.16.0S; affected 3.16.1S; affected 3.16.0aS; affected 3.16.1aS; affected 3.16.2S; affected 3.16.2aS; affected 3.16.0bS; affected 3.16.0cS; affected 3.16.3S; affected 3.16.2bS; affected 3.16.3aS; affected 3.16.4S; affected 3.16.4aS; affected 3.16.4bS; affected 3.16.4gS; affected 3.16.5S; affected 3.16.4cS; affected 3.16.4dS; affected 3.16.4eS; affected 3.16.5aS; affected 3.17.0S; affected 3.17.1S; affected 3.17.2S; affected 3.17.1aS; affected 3.17.3S; affected 3.17.4S; affected 3.2.0JA; affected 16.2.1; affected 16.2.2; affected 16.3.1; affected 16.3.2; affected 16.3.3; affected 16.3.1a; affected 16.3.4; affected 16.4.1; affected 16.4.2; affected 16.4.3; affected 16.5.1; affected 16.5.1a; affected 16.5.1b; affected 3.18.0aS; affected 3.18.0S; affected 3.18.1S; affected 3.18.2S; affected 3.18.3S; affected 3.18.4S; affected 3.18.0SP; affected 3.18.1SP; affected 3.18.1aSP; affected 3.18.1gSP; affected 3.18.1bSP; affected 3.18.1cSP; affected 3.18.2SP; affected 3.18.1hSP; affected 3.18.2aSP; affected 3.18.1iSP |
CWE
CWE-20
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-nbar
- http://www.securityfocus.com/bid/107597
ADP enrichment
No English description supplied.