Description (CNA)
iperf3 versions prior to 3.22 contains a denial of service vulnerability that allows unauthenticated remote attackers to crash-loop the server's UDP receive worker into an unrecoverable infinite loop by sending a single crafted control-channel parameter message followed by one 16-byte UDP datagram. Attackers can permanently pin the affected per-stream receive thread at approximately 100% CPU usage, rendering the server unusable until forcibly killed with SIGKILL, as the process does not respond to normal control-channel closure.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| esnet / iperf3 | affected 3.14 before 3.22 |
CWE
CWE-835
References
- https://github.com/esnet/iperf/releases/tag/3.22
- https://github.com/esnet/iperf/blob/master/RELNOTES.md
- https://www.vulncheck.com/advisories/iperf3-udp-receive-worker-infinite-loop-dos
ADP enrichment
No English description supplied.
No references supplied.