{
  "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/ubuntu16.04els/vex/2018/cve-2018-5711-els_os-ubuntu16_04els.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-04-14T09:01:35Z",
      "generator": {
        "date": "2026-04-14T09:01:35Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2018-5711-ELS_OS-UBUNTU16.04ELS",
      "initial_release_date": "2018-01-16T09:29:00Z",
      "revision_history": [
        {
          "date": "2018-01-16T09:29:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-04-14T09:01:35Z",
          "number": "2",
          "summary": "Official Publication"
        }
      ],
      "status": "final",
      "version": "2"
    },
    "title": "Security update on CVE-2018-5711"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Ubuntu 16.04",
                "product": {
                  "name": "Ubuntu 16.04",
                  "product_id": "Ubuntu-16",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Ubuntu"
          }
        ],
        "category": "vendor",
        "name": "Canonical Ltd."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libgd-dev-0:2.1.1-4ubuntu0.16.04.13.amd64",
                "product": {
                  "name": "libgd-dev-0:2.1.1-4ubuntu0.16.04.13.amd64",
                  "product_id": "libgd-dev-0:2.1.1-4ubuntu0.16.04.13.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/libgd-dev@2.1.1-4ubuntu0.16.04.13?arch=amd64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "amd64"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libgd-dev-0:2.1.1-4ubuntu0.16.04.13.amd64 as a component of Ubuntu 16.04",
          "product_id": "Ubuntu-16:libgd-dev-0:2.1.1-4ubuntu0.16.04.13.amd64"
        },
        "product_reference": "libgd-dev-0:2.1.1-4ubuntu0.16.04.13.amd64",
        "relates_to_product_reference": "Ubuntu-16"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-5711",
      "cwe": {
        "id": "CWE-681",
        "name": "Incorrect Conversion between Numeric Types"
      },
      "notes": [
        {
          "category": "description",
          "text": "gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.33, 7.0.x before 7.0.27, 7.1.x before 7.1.13, and 7.2.x before 7.2.1, has an integer signedness error that leads to an infinite loop via a crafted GIF file, as demonstrated by a call to the imagecreatefromgif or imagecreatefromstring PHP function. This is related to GetCode_ and gdImageCreateFromGifCtx.",
          "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": {
        "under_investigation": [
          "Ubuntu-16:libgd-dev-0:2.1.1-4ubuntu0.16.04.13.amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2018-5711"
        },
        {
          "category": "external",
          "summary": "http://php.net/ChangeLog-5.php",
          "url": "http://php.net/ChangeLog-5.php"
        },
        {
          "category": "external",
          "summary": "http://php.net/ChangeLog-7.php",
          "url": "http://php.net/ChangeLog-7.php"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHSA-2018:1296",
          "url": "https://access.redhat.com/errata/RHSA-2018:1296"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHSA-2019:2519",
          "url": "https://access.redhat.com/errata/RHSA-2019:2519"
        },
        {
          "category": "external",
          "summary": "https://bugs.php.net/bug.php?id=75571",
          "url": "https://bugs.php.net/bug.php?id=75571"
        },
        {
          "category": "external",
          "summary": "https://lists.debian.org/debian-lts-announce/2018/01/msg00022.html",
          "url": "https://lists.debian.org/debian-lts-announce/2018/01/msg00022.html"
        },
        {
          "category": "external",
          "summary": "https://lists.debian.org/debian-lts-announce/2019/01/msg00028.html",
          "url": "https://lists.debian.org/debian-lts-announce/2019/01/msg00028.html"
        },
        {
          "category": "external",
          "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/"
        },
        {
          "category": "external",
          "summary": "https://security.gentoo.org/glsa/201903-18",
          "url": "https://security.gentoo.org/glsa/201903-18"
        },
        {
          "category": "external",
          "summary": "https://usn.ubuntu.com/3755-1/",
          "url": "https://usn.ubuntu.com/3755-1/"
        },
        {
          "category": "external",
          "summary": "https://www.oracle.com/security-alerts/cpuapr2020.html",
          "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
        }
      ],
      "release_date": "2018-01-16T09:29:00Z",
      "remediations": [
        {
          "category": "none_available",
          "details": "Affected",
          "product_ids": [
            "Ubuntu-16:libgd-dev-0:2.1.1-4ubuntu0.16.04.13.amd64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "Ubuntu-16:libgd-dev-0:2.1.1-4ubuntu0.16.04.13.amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    }
  ]
}