{
  "document": {
    "aggregate_severity": {
      "text": "Critical"
    },
    "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": "CVE-2025-54574: fix buffer overflow in URN handling",
        "title": "Details"
      }
    ],
    "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/centos6els/advisories/2025/clsa-2025_1757016520.json"
      },
      {
        "category": "self",
        "summary": "https://cve.tuxcare.com/els/releases/CLSA-2025:1757016520",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1757016520"
      }
    ],
    "tracking": {
      "current_release_date": "2025-09-16T16:58:59Z",
      "generator": {
        "date": "2025-09-16T16:58:59Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2025:1757016520",
      "initial_release_date": "2025-09-04T20:08:42Z",
      "revision_history": [
        {
          "date": "2025-09-04T20:08:42Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2025-09-16T16:58:59Z",
          "number": "2",
          "summary": "Official Publication"
        }
      ],
      "status": "final",
      "version": "2"
    },
    "title": "squid34: Fix of CVE-2025-54574"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Community Enterprise Operating System 6",
                "product": {
                  "name": "Community Enterprise Operating System 6",
                  "product_id": "CentOS-6",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:centos:centos:6:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Community Enterprise Operating System"
          }
        ],
        "category": "vendor",
        "name": "Red Hat, Inc."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "squid34-7:3.4.14-16.el6.tuxcare.els10.x86_64",
                "product": {
                  "name": "squid34-7:3.4.14-16.el6.tuxcare.els10.x86_64",
                  "product_id": "squid34-7:3.4.14-16.el6.tuxcare.els10.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/cloudlinux/squid34@3.4.14-16.el6.tuxcare.els10?arch=x86_64&epoch=7"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "CloudLinux"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "squid34-7:3.4.14-16.el6.tuxcare.els10.x86_64 as a component of Community Enterprise Operating System 6",
          "product_id": "CentOS-6:squid34-7:3.4.14-16.el6.tuxcare.els10.x86_64"
        },
        "product_reference": "squid34-7:3.4.14-16.el6.tuxcare.els10.x86_64",
        "relates_to_product_reference": "CentOS-6"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-54574",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "description",
          "text": "Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions.",
          "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": {
        "fixed": [
          "CentOS-6:squid34-7:3.4.14-16.el6.tuxcare.els10.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-54574"
        },
        {
          "category": "external",
          "summary": "https://github.com/squid-cache/squid/commit/a27bf4b84da23594150c7a86a23435df0b35b988",
          "url": "https://github.com/squid-cache/squid/commit/a27bf4b84da23594150c7a86a23435df0b35b988"
        },
        {
          "category": "external",
          "summary": "https://github.com/squid-cache/squid/releases/tag/SQUID_6_4",
          "url": "https://github.com/squid-cache/squid/releases/tag/SQUID_6_4"
        },
        {
          "category": "external",
          "summary": "https://github.com/squid-cache/squid/security/advisories/GHSA-w4gv-vw3f-29g3",
          "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-w4gv-vw3f-29g3"
        }
      ],
      "release_date": "2025-08-01T18:15:00",
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CentOS-6:squid34-7:3.4.14-16.el6.tuxcare.els10.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Critical"
        }
      ]
    }
  ]
}