CVE-2023-7250: iperf3 (CVSS 5.3)

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.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-183 CWE-183

Affected Products

Vendor	Product	Versions
es	iperf3	< 3.15
redhat	enterprise_linux	All
redhat	enterprise_linux	All
redhat	enterprise_linux_for_arm_64	All
redhat	enterprise_linux_for_arm_64	All
redhat	enterprise_linux_for_ibm_z_systems	All
redhat	enterprise_linux_for_ibm_z_systems	All
redhat	enterprise_linux_for_power_little_endian	All

References

Other References

https://access.redhat.com/errata/RHSA-2024:4241 https://access.redhat.com/errata/RHSA-2024:9185 https://access.redhat.com/security/cve/CVE-2023-7250 https://bugzilla.redhat.com/show_bug.cgi?id=2244707 https://access.redhat.com/errata/RHSA-2024:4241 https://access.redhat.com/security/cve/CVE-2023-7250 https://bugzilla.redhat.com/show_bug.cgi?id=2244707 https://lists.debian.org/debian-lts-announce/2025/01/msg00027.html

Frequently Asked Questions

What is CVE-2023-7250? +

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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-7250? +

CVE-2023-7250 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-7250? +

CVE-2023-7250 affects products from es, redhat, specifically: enterprise_linux, enterprise_linux_for_arm_64, enterprise_linux_for_ibm_z_systems, enterprise_linux_for_power_little_endian, iperf3. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-7250? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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