CVE-2017-6552 Denial of service in n/a

High 7.5 Published Updated

An attacker can exhaust the IPv6 routing table to cause a denial of service on Livebox 3 devices, disrupting telephone, Internet, and TV services.

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-2017-6552?

CVE-2017-6552 is a high-severity denial of service vulnerability in n/a, published on 9 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Livebox 3 Sagemcom SG30_sip-fr-5.15.8.1 devices have an insufficiently large default value for the maximum IPv6 routing table size: it can be filled within minutes. An attacker can exploit this issue to render the affected system unresponsive, resulting in a denial-of-service condition for telephone, Internet, and TV services.

Weakness: CWE-400

Which versions are affected by CVE-2017-6552?

It affects 1 product.

Products include Sagemcom Livebox Firmware.

How do I fix CVE-2017-6552?

No fix has been published for CVE-2017-6552 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-2017-6552 being exploited?

There is no known exploitation of CVE-2017-6552 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-pwhx-m6g7-m6px.

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