{
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      "text": "Medium"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "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 Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
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      "contact_details": "https://tuxcare.com/contact/",
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        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/ubuntu18.04els/vex/2025/cve-2025-10158-els_os-ubuntu18_04els.json"
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          "date": "2025-11-18T14:24:00Z",
          "number": "1",
          "summary": "Initial version"
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        {
          "date": "2026-07-28T16:17:26Z",
          "number": "2",
          "summary": "Official Publication"
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        {
          "date": "2026-07-28T18:43:33Z",
          "number": "3",
          "summary": "Update document"
        },
        {
          "date": "2026-08-02T02:39:23Z",
          "number": "4",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "4"
    },
    "title": "Security update on CVE-2025-10158"
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  "vulnerabilities": [
    {
      "cve": "CVE-2025-10158",
      "cwe": {
        "id": "CWE-129",
        "name": "Improper Validation of Array Index"
      },
      "notes": [
        {
          "category": "description",
          "text": "A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The \n\nmalicious \n\nrsync client requires at least read access to the remote rsync module in order to trigger the issue.",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's 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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          "Ubuntu-18:rsync-0:3.1.2-2.1ubuntu1.6+tuxcare.els3.amd64",
          "Ubuntu-18:rsync-0:3.1.2-2.1ubuntu1.6+tuxcare.els5.amd64",
          "Ubuntu-18:rsync-0:3.1.2-2.1ubuntu1.6+tuxcare.els6.amd64",
          "Ubuntu-18:rsync-0:3.1.2-2.1ubuntu1.6+tuxcare.els7.amd64",
          "Ubuntu-18:rsync-0:3.1.2-2.1ubuntu1.6+tuxcare.els8.amd64",
          "Ubuntu-18:rsync-0:3.1.2-2.1ubuntu1.6.amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-10158"
        },
        {
          "category": "external",
          "summary": "https://attackerkb.com/assessments/fbacb2a6-d1cd-4011-bb3a-f06b1c8306b1",
          "url": "https://attackerkb.com/assessments/fbacb2a6-d1cd-4011-bb3a-f06b1c8306b1"
        },
        {
          "category": "external",
          "summary": "https://github.com/RsyncProject/rsync/commit/797e17fc4a6f15e3b1756538a9f812b63942686f",
          "url": "https://github.com/RsyncProject/rsync/commit/797e17fc4a6f15e3b1756538a9f812b63942686f"
        }
      ],
      "release_date": "2025-11-18T14:24:00Z",
      "remediations": [
        {
          "category": "no_fix_planned",
          "date": "2026-07-28T17:03:36.974234Z",
          "details": "This flaw only triggers when rsync is running in daemon mode and the attacker already has read permission to a named module, a specific server-side setup that excludes SSH-based rsync. It is a sender-side heap out‑of‑bounds read with no confidentiality or availability impact and only low integrity impact, and project analysis indicates it does not enable code execution. Given the prerequisite access and limited impact, it is reasonable to deprioritize in centrally managed VM/server deployments.",
          "product_ids": [
            "Ubuntu-18:rsync-0:3.1.2-2.1ubuntu1.6+tuxcare.els1.amd64",
            "Ubuntu-18:rsync-0:3.1.2-2.1ubuntu1.6+tuxcare.els3.amd64",
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          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    }
  ]
}