{
  "document": {
    "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"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/debian11els/vex/2026/cve-2026-70455-els_os-debian11els.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-09-18T13:36:40Z",
      "generator": {
        "date": "2026-09-18T13:36:40Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2026-70455-ELS_OS-DEBIAN11ELS",
      "initial_release_date": "2026-08-13T15:19:00Z",
      "revision_history": [
        {
          "date": "2026-08-13T15:19:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-09-17T12:45:34Z",
          "number": "2",
          "summary": "Official Publication"
        },
        {
          "date": "2026-09-18T13:36:40Z",
          "number": "3",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "3"
    },
    "title": "Security update on CVE-2026-70455"
  },
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          }
        ],
        "category": "vendor",
        "name": "Software in the Public Interest, Inc."
      },
      {
        "branches": [
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      }
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        "full_product_name": {
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          "product_id": "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els3.armel"
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        },
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      },
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        },
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        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rsync-0:3.2.3-4+deb11u4+tuxcare.els4.arm64 as a component of Debian 11",
          "product_id": "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els4.arm64"
        },
        "product_reference": "rsync-0:3.2.3-4+deb11u4+tuxcare.els4.arm64",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rsync-0:3.2.3-4+deb11u4+tuxcare.els4.armel as a component of Debian 11",
          "product_id": "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els4.armel"
        },
        "product_reference": "rsync-0:3.2.3-4+deb11u4+tuxcare.els4.armel",
        "relates_to_product_reference": "Debian-11"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rsync-0:3.2.3-4+deb11u4+tuxcare.els4.amd64 as a component of Debian 11",
          "product_id": "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els4.amd64"
        },
        "product_reference": "rsync-0:3.2.3-4+deb11u4+tuxcare.els4.amd64",
        "relates_to_product_reference": "Debian-11"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-70455",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "notes": [
        {
          "category": "description",
          "text": "rsync 3.4.2 before 3.5.0 contains a denial of service vulnerability that allows a remote sender to exhaust system resources by specifying the --zt short alias for --compress-threads, which bypasses the refuse options directive's string matching on long option names. Attackers can specify --zt=N with a large value to spawn an unbounded number of Zstandard worker threads on the receiver, exhausting available thread and memory resources.",
          "title": "Vulnerability description"
        },
        {
          "category": "other",
          "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.",
          "title": "Statement"
        }
      ],
      "product_status": {
        "known_not_affected": [
          "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els3.amd64",
          "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els3.arm64",
          "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els3.armel",
          "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els4.amd64",
          "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els4.arm64",
          "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els4.armel"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-70455"
        },
        {
          "category": "external",
          "summary": "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0",
          "url": "https://github.com/RsyncProject/rsync/releases/tag/v3.5.0"
        },
        {
          "category": "external",
          "summary": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-rjvj-qgqg-cvx9",
          "url": "https://github.com/RsyncProject/rsync/security/advisories/GHSA-rjvj-qgqg-cvx9"
        },
        {
          "category": "external",
          "summary": "https://www.vulncheck.com/advisories/rsync-dos-via-zt-zstandard-compression-thread-exhaustion",
          "url": "https://www.vulncheck.com/advisories/rsync-dos-via-zt-zstandard-compression-thread-exhaustion"
        }
      ],
      "release_date": "2026-08-13T15:19:00Z",
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        },
        {
          "category": "impact",
          "date": "2026-09-04T20:00:47.801118Z",
          "details": "unknown",
          "product_ids": [
            "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els3.amd64",
            "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els3.arm64",
            "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els3.armel",
            "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els4.amd64",
            "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els4.arm64",
            "Debian-11:rsync-0:3.2.3-4+deb11u4+tuxcare.els4.armel"
          ]
        }
      ]
    }
  ]
}