{
  "schema_version": "1.7.0",
  "id": "USN-2995-1",
  "summary": "squid3 vulnerabilities",
  "details": "Yuriy M. Kaminskiy discovered that the Squid pinger utility incorrectly\nhandled certain ICMPv6 packets. A remote attacker could use this issue to\ncause Squid to crash, resulting in a denial of service, or possibly cause\nSquid to leak information into log files. (CVE-2016-3947)\n\nYuriy M. Kaminskiy discovered that the Squid cachemgr.cgi tool incorrectly\nhandled certain crafted data. A remote attacker could use this issue to\ncause Squid to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2016-4051)\n\nIt was discovered that Squid incorrectly handled certain Edge Side Includes\n(ESI) responses. A remote attacker could possibly use this issue to cause\nSquid to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2016-4052, CVE-2016-4053, CVE-2016-4054)\n\nJianjun Chen discovered that Squid did not correctly ignore the Host header\nwhen absolute-URI is provided. A remote attacker could possibly use this\nissue to conduct cache-poisoning attacks. This issue only affected Ubuntu\n14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-4553)\n\nJianjun Chen discovered that Squid incorrectly handled certain HTTP Host\nheaders. A remote attacker could possibly use this issue to conduct\ncache-poisoning attacks. (CVE-2016-4554)\n\nIt was discovered that Squid incorrectly handled certain Edge Side Includes\n(ESI) responses. A remote attacker could possibly use this issue to cause\nSquid to crash, resulting in a denial of service. (CVE-2016-4555,\nCVE-2016-4556)\n",
  "aliases": [],
  "upstream": [
    "UBUNTU-CVE-2016-3947",
    "UBUNTU-CVE-2016-4051",
    "UBUNTU-CVE-2016-4052",
    "UBUNTU-CVE-2016-4053",
    "UBUNTU-CVE-2016-4054",
    "UBUNTU-CVE-2016-4553",
    "UBUNTU-CVE-2016-4554",
    "UBUNTU-CVE-2016-4555",
    "UBUNTU-CVE-2016-4556"
  ],
  "related": [],
  "published": "2016-06-09T17:10:37Z",
  "modified": "2026-02-10T04:41:00Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "squid3",
        "purl": "pkg:deb/ubuntu/squid3@3.3.8-1ubuntu6.8?arch=source&distro=trusty"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.3.8-1ubuntu6.8"
            }
          ]
        }
      ],
      "versions": [
        "3.3.8-1ubuntu3",
        "3.3.8-1ubuntu4",
        "3.3.8-1ubuntu5",
        "3.3.8-1ubuntu6",
        "3.3.8-1ubuntu6.1",
        "3.3.8-1ubuntu6.2",
        "3.3.8-1ubuntu6.3",
        "3.3.8-1ubuntu6.4",
        "3.3.8-1ubuntu6.6"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "squid",
            "binary_version": "3.3.8-1ubuntu6.8"
          },
          {
            "binary_name": "squid-cgi",
            "binary_version": "3.3.8-1ubuntu6.8"
          },
          {
            "binary_name": "squid-purge",
            "binary_version": "3.3.8-1ubuntu6.8"
          },
          {
            "binary_name": "squid3",
            "binary_version": "3.3.8-1ubuntu6.8"
          },
          {
            "binary_name": "squid3-common",
            "binary_version": "3.3.8-1ubuntu6.8"
          },
          {
            "binary_name": "squidclient",
            "binary_version": "3.3.8-1ubuntu6.8"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:14.04:LTS",
          "cves": [
            {
              "id": "CVE-2016-3947",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4051",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4052",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4053",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "low"
                }
              ]
            },
            {
              "id": "CVE-2016-4054",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4553",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4554",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4555",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4556",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            }
          ]
        }
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "squid3",
        "purl": "pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.2?arch=source&distro=xenial"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.12-1ubuntu7.2"
            }
          ]
        }
      ],
      "versions": [
        "3.3.8-1ubuntu16",
        "3.3.8-1ubuntu17",
        "3.5.12-1ubuntu6",
        "3.5.12-1ubuntu7",
        "3.5.12-1ubuntu7.1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "squid",
            "binary_version": "3.5.12-1ubuntu7.2"
          },
          {
            "binary_name": "squid-cgi",
            "binary_version": "3.5.12-1ubuntu7.2"
          },
          {
            "binary_name": "squid-common",
            "binary_version": "3.5.12-1ubuntu7.2"
          },
          {
            "binary_name": "squid-purge",
            "binary_version": "3.5.12-1ubuntu7.2"
          },
          {
            "binary_name": "squid3",
            "binary_version": "3.5.12-1ubuntu7.2"
          },
          {
            "binary_name": "squidclient",
            "binary_version": "3.5.12-1ubuntu7.2"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:16.04:LTS",
          "cves": [
            {
              "id": "CVE-2016-3947",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4051",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4052",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4053",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "low"
                }
              ]
            },
            {
              "id": "CVE-2016-4054",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4553",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4554",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4555",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2016-4556",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            }
          ]
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2995-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-3947"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4051"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4052"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4053"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4054"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4553"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4554"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4555"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4556"
    }
  ]
}