CVEvulnerability
CVE-2018-0170
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2018-03-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-416
Description
A vulnerability in the Cisco Umbrella Integration feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition, related to the OpenDNS software. The vulnerability is due to a logic error that exists when handling a malformed incoming packet, leading to access to an internal data structure after it has been freed. An attacker could exploit this vulnerability by sending crafted, malformed IP packets to an affected device. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvb86327.
Affected configurations
• cisco ios xe 16.4.1
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- http://www.securityfocus.com/bid/103560 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040590 Third Party Advisory, VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-opendns-dos Vendor Advisory
- http://www.securityfocus.com/bid/103560 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040590 Third Party Advisory, VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-opendns-dos Vendor Advisory