#VU78695 Integer overflow in iperf - CVE-2023-38403

Vulnerability identifier: #VU78695

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-38403

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
iperf
Other software / Other software solutions

Vendor: ESnet

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow. A remote attacker can pass specially crafted length field to the application, trigger an integer overflow and perform a denial of service (DoS0 attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

iperf: 3.0.1 - 3.13

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External links
https://github.com/esnet/iperf/commit/0ef151550d96cc4460f98832df84b4a1e87c65e9
https://bugs.debian.org/1040830
https://github.com/esnet/iperf/issues/1542
https://downloads.es.net/pub/iperf/esnet-secadv-2023-0001.txt.asc
https://cwe.mitre.org/data/definitions/130.html
https://lists.debian.org/debian-lts-announce/2023/07/msg00025.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.