{
  "document": {
    "aggregate_severity": {
      "text": "Low"
    },
    "category": "csaf_security_advisory",
    "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"
      },
      {
        "category": "details",
        "text": "* SECURITY UPDATE: acceptance of hosts not listed in specified known_hosts\n     file during SSH-based transfers\n     - debian/patches/CVE-2025-15079.patch: Set both knownhosts options to same\n       file and fix surprises caused by libssh exposing separate KNOWNHOSTS and\n       GLOBAL_KNOWNHOSTS options.\n     - CVE-2025-15079\n   * Regenerate Server-localhost-lastSAN-sv test certificate with SHA-256\n     - debian/patches/regenerate-lastSAN-cert-sha256.patch: Fix \"ca md too weak\"\n       error with OpenSSL 1.1.1+ by replacing SHA-1 signed certificate with\n       SHA-256. Also fixes Makefile.am bug for lastSAN target.\n   * Update failed test\n     - debian/patches/26_CVE-2021-22876.patch: Update test to avoid using\n       unsupported commands\n   * Update failed test\n     - debian/patches/fix-test323-errorcode.patch: two valid error codes now\n   * Disable some tests\n     - debian/rules: add option to disable tests marked as flaky, fail the\n       build if any test fails\n     - debian/patches/add-flaky-to-test1592.patch: mark test1592 as flaky\n     - debian/patches/disable-nss-failing-tests.patch: libnsspem.so is not\n       available on Debian 10\n   * Remove unsupported test:\n     - debian/patches/test8-verify-that-ctrl-byte-cookies-are-ignored.patch:\n       no ctrl-byte-cookies are supported",
        "title": "Details"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1773161124",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1773161124"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/debian10els/advisories/2026/clsa-2026_1773161124.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-03-10T16:46:04Z",
      "generator": {
        "date": "2026-03-10T16:46:04Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2026:1773161124",
      "initial_release_date": "2026-03-10T16:46:04Z",
      "revision_history": [
        {
          "date": "2026-03-10T16:46:04Z",
          "number": "1",
          "summary": "Initial version"
        }
      ],
      "status": "final",
      "version": "1"
    },
    "title": "Fix CVE(s): CVE-2021-22876, CVE-2025-15079"
  },
  "product_tree": {
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      {
        "branches": [
          {
            "branches": [
              {
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                "name": "Debian None",
                "product": {
                  "name": "Debian None",
                  "product_id": "Debian-10",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Debian"
          }
        ],
        "category": "vendor",
        "name": "Software in the Public Interest, Inc."
      },
      {
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          {
            "branches": [
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                "category": "product_version",
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                "category": "product_version",
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              },
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                  }
                }
              }
            ],
            "category": "architecture",
            "name": "amd64"
          },
          {
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                "category": "product_version",
                "name": "libcurl4-doc-0:7.64.0-4+deb10u9+tuxcare.els2.all",
                "product": {
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            ],
            "category": "architecture",
            "name": "all"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl4-openssl-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64 as a component of Debian None",
          "product_id": "Debian-10:libcurl4-openssl-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64"
        },
        "product_reference": "libcurl4-openssl-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
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        },
        "product_reference": "curl-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl3-nss-0:7.64.0-4+deb10u9+tuxcare.els2.amd64 as a component of Debian None",
          "product_id": "Debian-10:libcurl3-nss-0:7.64.0-4+deb10u9+tuxcare.els2.amd64"
        },
        "product_reference": "libcurl3-nss-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl4-gnutls-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64 as a component of Debian None",
          "product_id": "Debian-10:libcurl4-gnutls-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64"
        },
        "product_reference": "libcurl4-gnutls-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl4-doc-0:7.64.0-4+deb10u9+tuxcare.els2.all as a component of Debian None",
          "product_id": "Debian-10:libcurl4-doc-0:7.64.0-4+deb10u9+tuxcare.els2.all"
        },
        "product_reference": "libcurl4-doc-0:7.64.0-4+deb10u9+tuxcare.els2.all",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl4-0:7.64.0-4+deb10u9+tuxcare.els2.amd64 as a component of Debian None",
          "product_id": "Debian-10:libcurl4-0:7.64.0-4+deb10u9+tuxcare.els2.amd64"
        },
        "product_reference": "libcurl4-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcurl4-nss-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64 as a component of Debian None",
          "product_id": "Debian-10:libcurl4-nss-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64"
        },
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        },
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        "relates_to_product_reference": "Debian-10"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-15079",
      "cwe": {
        "id": "CWE-297",
        "name": "Improper Validation of Certificate with Host Mismatch"
      },
      "notes": [
        {
          "category": "description",
          "text": "When doing SSH-based transfers using either SCP or SFTP, and setting the\nknown_hosts file, libcurl could still mistakenly accept connecting to hosts\n*not present* in the specified file if they were added as recognized in the\nlibssh *global* known_hosts file.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "fixed": [
          "Debian-10:curl-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
          "Debian-10:libcurl3-gnutls-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
          "Debian-10:libcurl3-nss-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
          "Debian-10:libcurl4-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
          "Debian-10:libcurl4-doc-0:7.64.0-4+deb10u9+tuxcare.els2.all",
          "Debian-10:libcurl4-gnutls-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
          "Debian-10:libcurl4-nss-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
          "Debian-10:libcurl4-openssl-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-15079"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2025-15079.html",
          "url": "https://curl.se/docs/CVE-2025-15079.html"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2025-15079.json",
          "url": "https://curl.se/docs/CVE-2025-15079.json"
        },
        {
          "category": "external",
          "summary": "https://hackerone.com/reports/3477116",
          "url": "https://hackerone.com/reports/3477116"
        },
        {
          "category": "external",
          "summary": "http://www.openwall.com/lists/oss-security/2026/01/07/6",
          "url": "http://www.openwall.com/lists/oss-security/2026/01/07/6"
        }
      ],
      "release_date": "2026-01-08T10:15:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-03-10T16:45:27.356918Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1773161124",
          "product_ids": [
            "Debian-10:curl-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
            "Debian-10:libcurl3-gnutls-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
            "Debian-10:libcurl3-nss-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
            "Debian-10:libcurl4-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
            "Debian-10:libcurl4-doc-0:7.64.0-4+deb10u9+tuxcare.els2.all",
            "Debian-10:libcurl4-gnutls-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
            "Debian-10:libcurl4-nss-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64",
            "Debian-10:libcurl4-openssl-dev-0:7.64.0-4+deb10u9+tuxcare.els2.amd64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1773161124"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ]
    }
  ]
}