CVE-2005-3671 Denial of service in n/a

High 7.8 Published Updated

Remote attackers can cause a denial of service in Openswan and FreeSwan IKEv1 implementations via crafted packets or specific inputs.

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-2005-3671?

CVE-2005-3671 is a high-severity denial of service vulnerability in n/a, published on 18 Nov 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Internet Key Exchange version 1 (IKEv1) implementation in Openswan 2 (openswan-2) before 2.4.4, and freeswan in SUSE LINUX 9.1 before 2.04_1.5.4-1.23, allow remote attackers to cause a denial of service via (1) a crafted packet using 3DES with an invalid key length, or (2) unspecified inputs when Aggressive Mode is enabled and the PSK is known, as demonstrated by the PROTOS ISAKMP Test Suite for IKEv1.

Which versions are affected by CVE-2005-3671?

It affects 3 products.

Products include Frees Wan Frees Wan, Openswan Openswan, Xelerance Openswan.

How do I fix CVE-2005-3671?

No fix has been published for CVE-2005-3671 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-2005-3671 being exploited?

There is no known exploitation of CVE-2005-3671 in the wild and no public exploit code.

Sources

Also known as GHSA-rv79-rv3w-mqqc.

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