- Vulnerabilities 85,572
Cisco IOS XE Software Layer 2 Tunneling Protocol Denial of Service Vulnerability
Published: 2017-03-23 03:05:36
CVE Author: NIST National Vulnerability Database
CVSS Base Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C
Detection Method:
Checks if a vulnerable version is present on the target host.
Recommendations:
See the referenced vendor advisory for a solution.
Summary:
A vulnerability in the Layer 2 Tunneling Protocol (L2TP) parsing function
of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload.
Technical Details:
The vulnerability is due to insufficient validation of L2TP packets. An
attacker could exploit this vulnerability by sending a crafted L2TP packet to an affected device.
Impact:
A successful exploit could allow the attacker to cause the affected device
to reload, resulting in a denial of service (DoS) condition.
Detection Type:
Linux Distribution Package
Solution Type:
Vendor Patch
https://nvd.nist.gov/vuln/detail/CVE-2017-3857
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-l2tp
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