rhsa-2023_4570
Vulnerability from csaf_redhat
Published
2023-08-08 15:43
Modified
2024-11-06 03:31
Summary
Red Hat Security Advisory: iperf3 security update

Notes

Topic
An update for iperf3 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
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: memory allocation hazard and crash (CVE-2023-38403) 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.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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          "text": "An integer overflow flaw was found in the way iperf3 dynamically allocates memory buffers for JSON-formatted messages. A remote attacker could send a specially crafted sequence of bytes on the iperf3 control channel with a specified JSON message length of 0xffffffff to trigger an integer overflow leading the receiving process to abort due to heap corruption. This flaw allows an attacker to use a malicious client to cause a denial of service of an iperf3 server or potentially use a malicious server to cause connecting clients to crash.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "iperf3: memory allocation hazard and crash",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The most common usage of iperf3 is temporary and between trusted devices on private networks. Users may be impacted by this vulnerability if they are hosting publicly available iperf3 servers or are connecting to iperf3 servers they do not control or trust.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-38403"
        },
        {
          "category": "external",
          "summary": "RHBZ#2222204",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2222204"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-38403",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-38403"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-38403",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38403"
        },
        {
          "category": "external",
          "summary": "https://downloads.es.net/pub/iperf/esnet-secadv-2023-0001.txt.asc",
          "url": "https://downloads.es.net/pub/iperf/esnet-secadv-2023-0001.txt.asc"
        }
      ],
      "release_date": "2023-07-11T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-08-08T15:43:54+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "AppStream-8.8.0.Z.MAIN.EUS:iperf3-debuginfo-0:3.5-7.el8_8.x86_64",
            "AppStream-8.8.0.Z.MAIN.EUS:iperf3-debugsource-0:3.5-7.el8_8.aarch64",
            "AppStream-8.8.0.Z.MAIN.EUS:iperf3-debugsource-0:3.5-7.el8_8.i686",
            "AppStream-8.8.0.Z.MAIN.EUS:iperf3-debugsource-0:3.5-7.el8_8.ppc64le",
            "AppStream-8.8.0.Z.MAIN.EUS:iperf3-debugsource-0:3.5-7.el8_8.s390x",
            "AppStream-8.8.0.Z.MAIN.EUS:iperf3-debugsource-0:3.5-7.el8_8.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2023:4570"
        },
        {
          "category": "workaround",
          "details": "Do not run iperf3 as a publicly accessible service unless required. If required, restrict availability to the iperf3 server to only allow access from network ranges of trusted clients. Do not connect to iperf3 servers that you do not trust.",
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
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          ]
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "iperf3: memory allocation hazard and crash"
    }
  ]
}


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