[ALSA-2026:61389] Important: iperf3 security update
Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, and data-gram loss. Security Fix(es): * iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource ex…
Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, and data-gram loss.
Security Fix(es):
* iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource ex…
[ALSA-2026:61389] Important: iperf3 security update
Security Fix(es):
* iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource exhaustion (CVE-2026-71217)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
| Architecture | Package | Checksum |
| aarch64 | iperf3-3.9-17.el9_8.1.aarch64.rpm | 1e00b4db02072a7b5f28bf89b5140364cbb913178bc7f6679c483869aea04380 |
| i686 | iperf3-3.9-17.el9_8.1.i686.rpm | c08d9e817740e2a30973c88f863e2a324bd67c24ca57f74169d41c8c8280df16 |
| ppc64le | iperf3-3.9-17.el9_8.1.ppc64le.rpm | e3ad081e235bc40efa889ac446c88c52d8dca165d6dde88a13fa5ed20fd6c8ae |
| s390x | iperf3-3.9-17.el9_8.1.s390x.rpm | 1937f958550581adab8d5718b0a836b4c631afcc04052862a4a9d2f089e9537e |
| x86_64 | iperf3-3.9-17.el9_8.1.x86_64.rpm | 1d0e1ea10a800eab748d3a948b09cb8ce7e2201a4b87240b9edcbeac93b7924f |
How to Apply the Fix
Update the affected packages on your server to the patched release, then restart the relevant services.
sudo dnf updateReferences
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