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

CVE-2023-29552 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2023-11-08

The Service Location Protocol (SLP) allows unauthenticated, remote attackers to register arbitrary services. Attackers can leverage this to conduct reflective denial-of-service (DoS) attacks using spoofed UDP traffic with a significant amplification factor.

Quick answers

Is CVE-2023-29552 exploited in the wild?
Yes. CVE-2023-29552 is known to be exploited in the wild, first recorded on 8 November 2023. Treat it as urgent.
How severe is CVE-2023-29552?
Critical severity, with a CVSS score of 7.5, published 8 November 2023.
Which products and versions are affected?
Service Location Protocol Project Service Location Protocol (SLP) -; VMware ESXi up to (excluding) 7.0; NetApp SMI-S Provider -; SUSE Manager Server -; and 1 more.
Is there a fix for CVE-2023-29552?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2023-29552 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2023-29552?
Check whether you run Ietf Service Location Protocol (SLP). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Service Location Protocol Project Service Location Protocol (SLP) -
  • VMware ESXi up to (excluding) 7.0
  • NetApp SMI-S Provider -
  • SUSE Manager Server -
  • SUSE Linux Enterprise Server 11, 12, 15

Timeline

  • 2023-04-25: advisory: CISA and VMware release initial alerts/responses regarding SLP abuse.
  • 2023-05-04: other: Initial analysis by NIST.
  • 2023-11-08: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.
  • 2023-11-08: disclosed

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