CVE-2019-5043 Denial of service in Nest Labs

Medium 5.3 Published Updated

An attacker can cause a denial of service on Nest Cam IQ Indoor devices by establishing multiple TCP connections that trigger unrestricted resource allocation.

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-2019-5043?

CVE-2019-5043 is a medium-severity denial of service vulnerability in Nest Labs, published on 31 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An exploitable denial-of-service vulnerability exists in the Weave daemon of the Nest Cam IQ Indoor, version 4620002. A set of TCP connections can cause unrestricted resource allocation, resulting in a denial of service. An attacker can connect multiple times to trigger this vulnerability.

Weakness: CWE-770, CWE-400

Which versions are affected by CVE-2019-5043?

It affects 1 product.

Products include Google Nest Cam Iq Indoor Firmware.

How do I fix CVE-2019-5043?

No fix has been published for CVE-2019-5043 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-2019-5043 being exploited?

There is no known exploitation of CVE-2019-5043 in the wild and no public exploit code.

Sources

Also known as GHSA-g2cx-fp24-993m.

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