CVE-2017-3857 (GCVE-0-2017-3857)

Vulnerability from cvelistv5 – Published: 2017-03-22 19:00 – Updated: 2024-08-05 14:39
VLAI
Summary
A vulnerability in the Layer 2 Tunneling Protocol (L2TP) parsing function of Cisco IOS (12.0 through 12.4 and 15.0 through 15.6) and Cisco IOS XE (3.1 through 3.18) could allow an unauthenticated, remote attacker to cause an affected device to reload. 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. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS or Cisco IOS XE Software if the L2TP feature is enabled for the device and the device is configured as an L2TP Version 2 (L2TPv2) or L2TP Version 3 (L2TPv3) endpoint. By default, the L2TP feature is not enabled. Cisco Bug IDs: CSCuy82078.
Severity
No CVSS data available.
CWE
  • CWE-399 - Denial of Service Vulnerability
Assigner
References
URL Tags
http://www.securitytracker.com/id/1038100 vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/97010 vdb-entryx_refsource_BID
https://tools.cisco.com/security/center/content/C… x_refsource_CONFIRM
Impacted products
Vendor Product Version
n/a Cisco IOS and IOS XE Affected: Cisco IOS and IOS XE
Date Public
2017-03-22 00:00
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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