CVE-2005-1802 Denial of service in n/a

Medium 5.0 Published 1 Jun 2005 Updated 7 Aug 2024

Remote attackers can crash Nortel VPN Routers by sending malformed IPsec IKE packets, causing a denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2005-1802?

CVE-2005-1802 is a medium-severity denial of service vulnerability in n/a, published on 1 Jun 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash) via an IPsec IKE packet with a malformed ISAKMP header.

Which versions are affected by CVE-2005-1802?

It affects 9 products.

Products include Nortel Contivity, Nortel Vpn Router 1010, Nortel Vpn Router 1050, Nortel Vpn Router 1100, Nortel Vpn Router 1700, Nortel Vpn Router 1740 and 3 more.

How do I fix CVE-2005-1802?

No fix has been published for CVE-2005-1802 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2005-1802 being exploited?

There is no known exploitation of CVE-2005-1802 in the wild and no public exploit code.

Sources

Also known as GHSA-c5fw-9qc8-grvm.