VAR-200601-0270

Vulnerability from variot - Updated: 2023-12-18 14:06

Linksys BEFVP41 VPN Router 2.0 with firmware 1.01.04 allows remote attackers on the local network, to cause a denial of service via IP packets with a null IP option length. Linksys BEFVP41 routers are susceptible to a remote denial of service vulnerability. This issue is due to a failure of the devices to properly handle unexpected network traffic. This issue allows remote attackers to crash affected devices, denying service to legitimate users. Reportedly, attackers must be located on the internal network, and be able to pass traffic through the router to exploit this issue. It may also be possible from the external side of the network, but this has not been confirmed.

The vulnerability has been reported in version 2.0 with firmware revision 1.01.04.

SOLUTION: Use the device on trusted networks only.

PROVIDED AND/OR DISCOVERED BY: Paul

About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.

Subscribe: http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/

Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.

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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.