{
  "document": {
    "aggregate_severity": {
      "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"
      }
    ],
    "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/oraclelinux6els/vex/2019/cve-2019-13636-els_os-oraclelinux6els.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-10-27T08:06:49Z",
      "generator": {
        "date": "2026-10-27T08:06:49Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2019-13636-ELS_OS-ORACLELINUX6ELS",
      "initial_release_date": "2019-07-17T21:15:00Z",
      "revision_history": [
        {
          "date": "2019-07-17T21:15:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-10-27T08:06:49Z",
          "number": "2",
          "summary": "Official Publication"
        }
      ],
      "status": "final",
      "version": "2"
    },
    "title": "Security update on CVE-2019-13636"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Oracle Linux 6",
                "product": {
                  "name": "Oracle Linux 6",
                  "product_id": "Oracle-Linux-6",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Oracle Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "patch-0:2.6-8.el6_9.x86_64",
                "product": {
                  "name": "patch-0:2.6-8.el6_9.x86_64",
                  "product_id": "patch-0:2.6-8.el6_9.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/oracle/patch@2.6-8.el6_9?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "patch-0:2.6-8.el6_9.i686",
                "product": {
                  "name": "patch-0:2.6-8.el6_9.i686",
                  "product_id": "patch-0:2.6-8.el6_9.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/oracle/patch@2.6-8.el6_9?arch=i686"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "i686"
          }
        ],
        "category": "vendor",
        "name": "Oracle Corporation"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "patch-0:2.6-8.el6_9.tuxcare.els1.x86_64",
                "product": {
                  "name": "patch-0:2.6-8.el6_9.tuxcare.els1.x86_64",
                  "product_id": "patch-0:2.6-8.el6_9.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/cloudlinux/patch@2.6-8.el6_9.tuxcare.els1?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "patch-0:2.6-8.el6_9.tuxcare.els1.i686",
                "product": {
                  "name": "patch-0:2.6-8.el6_9.tuxcare.els1.i686",
                  "product_id": "patch-0:2.6-8.el6_9.tuxcare.els1.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/cloudlinux/patch@2.6-8.el6_9.tuxcare.els1?arch=i686"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "i686"
          }
        ],
        "category": "vendor",
        "name": "CloudLinux"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "patch-0:2.6-8.el6_9.tuxcare.els1.x86_64 as a component of Oracle Linux 6",
          "product_id": "Oracle-Linux-6:patch-0:2.6-8.el6_9.tuxcare.els1.x86_64"
        },
        "product_reference": "patch-0:2.6-8.el6_9.tuxcare.els1.x86_64",
        "relates_to_product_reference": "Oracle-Linux-6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "patch-0:2.6-8.el6_9.x86_64 as a component of Oracle Linux 6",
          "product_id": "Oracle-Linux-6:patch-0:2.6-8.el6_9.x86_64"
        },
        "product_reference": "patch-0:2.6-8.el6_9.x86_64",
        "relates_to_product_reference": "Oracle-Linux-6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "patch-0:2.6-8.el6_9.tuxcare.els1.i686 as a component of Oracle Linux 6",
          "product_id": "Oracle-Linux-6:patch-0:2.6-8.el6_9.tuxcare.els1.i686"
        },
        "product_reference": "patch-0:2.6-8.el6_9.tuxcare.els1.i686",
        "relates_to_product_reference": "Oracle-Linux-6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "patch-0:2.6-8.el6_9.i686 as a component of Oracle Linux 6",
          "product_id": "Oracle-Linux-6:patch-0:2.6-8.el6_9.i686"
        },
        "product_reference": "patch-0:2.6-8.el6_9.i686",
        "relates_to_product_reference": "Oracle-Linux-6"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-13636",
      "cwe": {
        "id": "CWE-59",
        "name": "Improper Link Resolution Before File Access ('Link Following')"
      },
      "notes": [
        {
          "category": "description",
          "text": "In GNU patch through 2.7.6, the following of symlinks is mishandled in certain cases other than input files. This affects inp.c and util.c.",
          "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": {
        "known_affected": [
          "Oracle-Linux-6:patch-0:2.6-8.el6_9.i686",
          "Oracle-Linux-6:patch-0:2.6-8.el6_9.tuxcare.els1.i686",
          "Oracle-Linux-6:patch-0:2.6-8.el6_9.tuxcare.els1.x86_64",
          "Oracle-Linux-6:patch-0:2.6-8.el6_9.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2019-13636"
        },
        {
          "category": "external",
          "summary": "http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html",
          "url": "http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html"
        },
        {
          "category": "external",
          "summary": "https://git.savannah.gnu.org/cgit/patch.git/commit/?id=dce4683cbbe107a95f1f0d45fabc304acfb5d71a",
          "url": "https://git.savannah.gnu.org/cgit/patch.git/commit/?id=dce4683cbbe107a95f1f0d45fabc304acfb5d71a"
        },
        {
          "category": "external",
          "summary": "https://github.com/irsl/gnu-patch-vulnerabilities",
          "url": "https://github.com/irsl/gnu-patch-vulnerabilities"
        },
        {
          "category": "external",
          "summary": "https://lists.debian.org/debian-lts-announce/2019/07/msg00016.html",
          "url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00016.html"
        },
        {
          "category": "external",
          "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVWWGISFWACROJJPVJJL4UBLVZ7LPOLT/",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVWWGISFWACROJJPVJJL4UBLVZ7LPOLT/"
        },
        {
          "category": "external",
          "summary": "https://seclists.org/bugtraq/2019/Aug/29",
          "url": "https://seclists.org/bugtraq/2019/Aug/29"
        },
        {
          "category": "external",
          "summary": "https://seclists.org/bugtraq/2019/Jul/54",
          "url": "https://seclists.org/bugtraq/2019/Jul/54"
        },
        {
          "category": "external",
          "summary": "https://security.gentoo.org/glsa/201908-22",
          "url": "https://security.gentoo.org/glsa/201908-22"
        },
        {
          "category": "external",
          "summary": "https://security.netapp.com/advisory/ntap-20190828-0001/",
          "url": "https://security.netapp.com/advisory/ntap-20190828-0001/"
        },
        {
          "category": "external",
          "summary": "https://usn.ubuntu.com/4071-1/",
          "url": "https://usn.ubuntu.com/4071-1/"
        },
        {
          "category": "external",
          "summary": "https://usn.ubuntu.com/4071-2/",
          "url": "https://usn.ubuntu.com/4071-2/"
        },
        {
          "category": "external",
          "summary": "https://www.debian.org/security/2019/dsa-4489",
          "url": "https://www.debian.org/security/2019/dsa-4489"
        }
      ],
      "release_date": "2019-07-17T21:15:00Z",
      "remediations": [
        {
          "category": "no_fix_planned",
          "date": "2026-10-15T08:14:57.687125Z",
          "details": "Low practical exposure: patch is a local, on-demand CLI tool, so exploiting CVE-2019-13636 requires someone to intentionally run it on attacker-supplied input rather than a remotely reachable service. The issue hinges on crafted symlink resolution in the target tree and executes with the caller’s privileges, so it can only redirect writes to locations already writable by that user, impacting integrity only (no confidentiality or availability). In centrally managed server/VM environments that do not process untrusted patch files on production filesystems, this is a reasonable deprioritization candidate.",
          "product_ids": [
            "Oracle-Linux-6:patch-0:2.6-8.el6_9.i686",
            "Oracle-Linux-6:patch-0:2.6-8.el6_9.tuxcare.els1.i686",
            "Oracle-Linux-6:patch-0:2.6-8.el6_9.tuxcare.els1.x86_64",
            "Oracle-Linux-6:patch-0:2.6-8.el6_9.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "products": [
            "Oracle-Linux-6:patch-0:2.6-8.el6_9.i686",
            "Oracle-Linux-6:patch-0:2.6-8.el6_9.tuxcare.els1.i686",
            "Oracle-Linux-6:patch-0:2.6-8.el6_9.tuxcare.els1.x86_64",
            "Oracle-Linux-6:patch-0:2.6-8.el6_9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    }
  ]
}