CVE-2023-7250

Publication date 18 March 2024

Last updated 22 January 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.3 · Medium

Score breakdown

Description

A flaw was found in iperf, a utility for testing network performance using TCP, UDP, and SCTP. A malicious or malfunctioning client can send less than the expected amount of data to the iperf server, which can cause the server to hang indefinitely waiting for the remainder or until the connection gets closed. This will prevent other connections to the server, leading to a denial of service.

Status

Package Ubuntu Release Status
iperf3 25.10 questing
Not affected
25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic Ignored end of life, was needs-triage
22.04 LTS jammy
Fixed 3.9-1+deb11u1ubuntu0.1
20.04 LTS focal
Fixed 3.7-3ubuntu0.1~esm1
18.04 LTS bionic
Fixed 3.1.3-1ubuntu0.1~esm1
16.04 LTS xenial
Fixed 3.0.11-1ubuntu0.1~esm2

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Severity score breakdown

Parameter Value
Base score 5.3 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

Related Ubuntu Security Notices (USN)

    • USN-7970-1
    • iperf3 vulnerabilities
    • 21 January 2026

Other references