CVE-2023-29552 Service Location Protocol (SLP) Denial-of-Service

Exploited in the wild High 7.5 Published Updated

Unauthenticated remote attackers can register arbitrary services via SLP to launch amplified denial-of-service attacks using spoofed UDP traffic.

Exploited in the wild
Since 8 Nov 2023
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-29552?

CVE-2023-29552 is a high-severity denial of service vulnerability in Suse Linux Enterprise Server, published on 25 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.

Which versions are affected by CVE-2023-29552?

It affects 5 products.

Products include Netapp Smi-S Provider, Service Location Protocol Project Service Location Protocol, Suse Linux Enterprise Server, Suse Manager Server, Vmware Esxi.

How do I fix CVE-2023-29552?

No fix has been published for CVE-2023-29552 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 29 Nov 2023.

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-2023-29552 being exploited?

Yes. Attackers have exploited CVE-2023-29552 in the wild since at least 8 Nov 2023.

Sources

Also known as GHSA-288r-5qm5-qp55, UBUNTU-CVE-2023-29552.

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