CVE-2019-9547

Severity: medium (CVSS 5.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-03-01 · updated 2026-06-17
Weakness: CWE-834

Description

In Storage Performance Development Kit (SPDK) before 19.01, a malicious vhost client (i.e., virtual machine) could carefully construct a circular descriptor chain that would result in a partial denial of service in the SPDK vhost target, because the vhost target did not properly detect such chains.

Affected products

Spdk Storage Performance Development Kit: before 19.01 — fixed in 19.01

How to fix

Upgrade to a fixed version: Spdk Storage Performance Development Kit 19.01. Check the vendor advisory for mitigations.

References

https://github.com/spdk/spdk/commit/eca42c66092b9031711afe215fbc1891ee55f143
https://github.com/spdk/spdk/releases/tag/v19.01
https://github.com/spdk/spdk/commit/eca42c66092b9031711afe215fbc1891ee55f143
https://github.com/spdk/spdk/releases/tag/v19.01

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