ubuntu-cve-2014-6053
Vulnerability from osv_ubuntu
Published
2014-09-24 00:00
Modified
2026-05-20 14:48
Summary
Details

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.

Severity
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "krfb",
            "binary_version": "4:4.13.3-0ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "krfb",
        "purl": "pkg:deb/ubuntu/krfb@4:4.13.3-0ubuntu1.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4:4.13.3-0ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.11.2-0ubuntu1",
        "4:4.11.80-0ubuntu1",
        "4:4.11.95-0ubuntu1",
        "4:4.11.97-0ubuntu1",
        "4:4.12.0-0ubuntu1",
        "4:4.12.1-0ubuntu1",
        "4:4.12.2-0ubuntu1",
        "4:4.12.3-0ubuntu1",
        "4:4.12.90-0ubuntu1",
        "4:4.12.95-0ubuntu1",
        "4:4.12.97-0ubuntu1",
        "4:4.13.0-0ubuntu1",
        "4:4.13.0-0ubuntu1.1",
        "4:4.13.3-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.9+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libvncserver0",
            "binary_version": "0.9.9+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "linuxvnc",
            "binary_version": "0.9.9+dfsg-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "libvncserver",
        "purl": "pkg:deb/ubuntu/libvncserver@0.9.9+dfsg-1ubuntu1.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.9+dfsg-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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        "0.9.9+dfsg-1",
        "0.9.9+dfsg-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "tightvncserver",
            "binary_version": "1.3.9-6.5+deb8u1build0.14.04.1~esm1"
          },
          {
            "binary_name": "xtightvncviewer",
            "binary_version": "1.3.9-6.5+deb8u1build0.14.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "tightvnc",
        "purl": "pkg:deb/ubuntu/tightvnc@1.3.9-6.5+deb8u1build0.14.04.1~esm1?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.9-6.5+deb8u1build0.14.04.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.9-6.4",
        "1.3.9-6.4ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "italc-client",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
          },
          {
            "binary_name": "italc-management-console",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
          },
          {
            "binary_name": "italc-master",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
          },
          {
            "binary_name": "libitalccore",
            "binary_version": "1:2.0.2+dfsg1-4ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "italc",
        "purl": "pkg:deb/ubuntu/italc@1:2.0.2+dfsg1-4ubuntu0.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:2.0.2+dfsg1-4ubuntu0.1"
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          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:2.0.2+dfsg1-3",
        "1:2.0.2+dfsg1-4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "vino",
            "binary_version": "3.8.1-0ubuntu9.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "vino",
        "purl": "pkg:deb/ubuntu/vino@3.8.1-0ubuntu9.3?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "3.8.1-0ubuntu7",
        "3.8.1-0ubuntu8",
        "3.8.1-0ubuntu9",
        "3.8.1-0ubuntu9.1",
        "3.8.1-0ubuntu9.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tightvncserver",
            "binary_version": "1.3.10-0ubuntu3"
          },
          {
            "binary_name": "xtightvncviewer",
            "binary_version": "1.3.10-0ubuntu3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "tightvnc",
        "purl": "pkg:deb/ubuntu/tightvnc@1.3.10-0ubuntu3?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.10-0ubuntu2",
        "1.3.10-0ubuntu3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "vino",
            "binary_version": "3.22.0-3ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "vino",
        "purl": "pkg:deb/ubuntu/vino@3.22.0-3ubuntu1.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.22.0-3ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.1-0ubuntu12",
        "3.22.0-2ubuntu1",
        "3.22.0-3ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tightvncserver",
            "binary_version": "1.3.10-0ubuntu4"
          },
          {
            "binary_name": "xtightvncviewer",
            "binary_version": "1.3.10-0ubuntu4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "tightvnc",
        "purl": "pkg:deb/ubuntu/tightvnc@1.3.10-0ubuntu4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.10-0ubuntu3",
        "1.3.10-0ubuntu4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "vino",
            "binary_version": "3.22.0-5ubuntu2.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "vino",
        "purl": "pkg:deb/ubuntu/vino@3.22.0-5ubuntu2.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.22.0-5ubuntu2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.22.0-5ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tightvncserver",
            "binary_version": "1.3.10-0ubuntu5"
          },
          {
            "binary_name": "xtightvncviewer",
            "binary_version": "1.3.10-0ubuntu5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "tightvnc",
        "purl": "pkg:deb/ubuntu/tightvnc@1.3.10-0ubuntu5?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.10-0ubuntu5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tightvncpasswd",
            "binary_version": "1:1.3.10-5"
          },
          {
            "binary_name": "tightvncserver",
            "binary_version": "1:1.3.10-5"
          },
          {
            "binary_name": "xtightvncviewer",
            "binary_version": "1:1.3.10-5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "tightvnc",
        "purl": "pkg:deb/ubuntu/tightvnc@1:1.3.10-5?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.3.10-3",
        "1:1.3.10-5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tightvncpasswd",
            "binary_version": "1:1.3.10-8"
          },
          {
            "binary_name": "tightvncserver",
            "binary_version": "1:1.3.10-8"
          },
          {
            "binary_name": "xtightvncviewer",
            "binary_version": "1:1.3.10-8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "tightvnc",
        "purl": "pkg:deb/ubuntu/tightvnc@1:1.3.10-8?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.3.10-7",
        "1:1.3.10-7build1",
        "1:1.3.10-7build2",
        "1:1.3.10-8"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tightvncpasswd",
            "binary_version": "1:1.3.10-10"
          },
          {
            "binary_name": "tightvncserver",
            "binary_version": "1:1.3.10-10"
          },
          {
            "binary_name": "xtightvncviewer",
            "binary_version": "1:1.3.10-10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "tightvnc",
        "purl": "pkg:deb/ubuntu/tightvnc@1:1.3.10-10?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
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            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.3.10-9",
        "1:1.3.10-10"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tightvncpasswd",
            "binary_version": "1:1.3.10-10build1"
          },
          {
            "binary_name": "tightvncserver",
            "binary_version": "1:1.3.10-10build1"
          },
          {
            "binary_name": "xtightvncviewer",
            "binary_version": "1:1.3.10-10build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "tightvnc",
        "purl": "pkg:deb/ubuntu/tightvnc@1:1.3.10-10build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.3.10-10",
        "1:1.3.10-10build1"
      ]
    }
  ],
  "aliases": [],
  "details": "The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.",
  "id": "UBUNTU-CVE-2014-6053",
  "modified": "2026-05-20T14:48:44Z",
  "published": "2014-09-24T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-6053"
    },
    {
      "type": "REPORT",
      "url": "http://seclists.org/oss-sec/2014/q3/639"
    },
    {
      "type": "REPORT",
      "url": "http://www.kde.org/info/security/advisory-20140923-1.txt"
    },
    {
      "type": "REPORT",
      "url": "http://www.ocert.org/advisories/ocert-2014-007.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2365-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4573-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4587-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2014-6053"
    }
  ],
  "related": [
    "USN-2365-1",
    "USN-4573-1",
    "USN-4587-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2014-6053"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.