ubuntu-cve-2020-14397
Vulnerability from osv_ubuntu
Published
2020-06-17 16:15
Modified
2026-05-20 14:52
Summary
Details

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "x11vnc",
            "binary_version": "0.9.13-1.1"
          },
          {
            "binary_name": "x11vnc-data",
            "binary_version": "0.9.13-1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "x11vnc",
        "purl": "pkg:deb/ubuntu/x11vnc@0.9.13-1.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.13-1.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.5"
          },
          {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.5"
          },
          {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.10+dfsg-3ubuntu0.16.04.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libvncserver",
        "purl": "pkg:deb/ubuntu/libvncserver@0.9.10+dfsg-3ubuntu0.16.04.5?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.10+dfsg-3ubuntu0.16.04.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.10+dfsg-3",
        "0.9.10+dfsg-3build1",
        "0.9.10+dfsg-3ubuntu0.16.04.1",
        "0.9.10+dfsg-3ubuntu0.16.04.2",
        "0.9.10+dfsg-3ubuntu0.16.04.3",
        "0.9.10+dfsg-3ubuntu0.16.04.4"
      ]
    },
    {
      "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"
            },
            {
              "fixed": "3.8.1-0ubuntu9.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.1-0ubuntu6",
        "3.8.1-0ubuntu7",
        "3.8.1-0ubuntu8",
        "3.8.1-0ubuntu9",
        "3.8.1-0ubuntu9.1",
        "3.8.1-0ubuntu9.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.11+dfsg-1ubuntu1.3"
          },
          {
            "binary_name": "libvncserver-config",
            "binary_version": "0.9.11+dfsg-1ubuntu1.3"
          },
          {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.11+dfsg-1ubuntu1.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libvncserver",
        "purl": "pkg:deb/ubuntu/libvncserver@0.9.11+dfsg-1ubuntu1.3?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.11+dfsg-1ubuntu1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.11+dfsg-1",
        "0.9.11+dfsg-1ubuntu1",
        "0.9.11+dfsg-1ubuntu1.1",
        "0.9.11+dfsg-1ubuntu1.2"
      ]
    },
    {
      "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": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libvncclient1",
            "binary_version": "0.9.12+dfsg-9ubuntu0.2"
          },
          {
            "binary_name": "libvncserver1",
            "binary_version": "0.9.12+dfsg-9ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libvncserver",
        "purl": "pkg:deb/ubuntu/libvncserver@0.9.12+dfsg-9ubuntu0.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.12+dfsg-9ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.11+dfsg-1.3",
        "0.9.12+dfsg-3ubuntu3",
        "0.9.12+dfsg-6",
        "0.9.12+dfsg-7",
        "0.9.12+dfsg-8",
        "0.9.12+dfsg-9",
        "0.9.12+dfsg-9ubuntu0.1"
      ]
    },
    {
      "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": "libveyon-core",
            "binary_version": "4.3.1+repack1-2build2"
          },
          {
            "binary_name": "veyon-configurator",
            "binary_version": "4.3.1+repack1-2build2"
          },
          {
            "binary_name": "veyon-master",
            "binary_version": "4.3.1+repack1-2build2"
          },
          {
            "binary_name": "veyon-plugins",
            "binary_version": "4.3.1+repack1-2build2"
          },
          {
            "binary_name": "veyon-service",
            "binary_version": "4.3.1+repack1-2build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "veyon",
        "purl": "pkg:deb/ubuntu/veyon@4.3.1+repack1-2build2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2.4+repack1-2",
        "4.2.5+repack1-1",
        "4.3.1+repack1-1",
        "4.3.1+repack1-2",
        "4.3.1+repack1-2build1",
        "4.3.1+repack1-2build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libveyon-core",
            "binary_version": "4.5.3+repack1-1build2"
          },
          {
            "binary_name": "veyon-configurator",
            "binary_version": "4.5.3+repack1-1build2"
          },
          {
            "binary_name": "veyon-master",
            "binary_version": "4.5.3+repack1-1build2"
          },
          {
            "binary_name": "veyon-plugins",
            "binary_version": "4.5.3+repack1-1build2"
          },
          {
            "binary_name": "veyon-service",
            "binary_version": "4.5.3+repack1-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "veyon",
        "purl": "pkg:deb/ubuntu/veyon@4.5.3+repack1-1build2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.5.3+repack1-1build1",
        "4.5.3+repack1-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libveyon-core",
            "binary_version": "4.7.5+repack1-1ubuntu5"
          },
          {
            "binary_name": "veyon-configurator",
            "binary_version": "4.7.5+repack1-1ubuntu5"
          },
          {
            "binary_name": "veyon-master",
            "binary_version": "4.7.5+repack1-1ubuntu5"
          },
          {
            "binary_name": "veyon-plugins",
            "binary_version": "4.7.5+repack1-1ubuntu5"
          },
          {
            "binary_name": "veyon-service",
            "binary_version": "4.7.5+repack1-1ubuntu5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "veyon",
        "purl": "pkg:deb/ubuntu/veyon@4.7.5+repack1-1ubuntu5?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.7.5+repack1-1build2",
        "4.7.5+repack1-1ubuntu1",
        "4.7.5+repack1-1ubuntu3",
        "4.7.5+repack1-1ubuntu4",
        "4.7.5+repack1-1ubuntu5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libveyon-core",
            "binary_version": "4.9.7+repack1-1"
          },
          {
            "binary_name": "veyon-configurator",
            "binary_version": "4.9.7+repack1-1"
          },
          {
            "binary_name": "veyon-master",
            "binary_version": "4.9.7+repack1-1"
          },
          {
            "binary_name": "veyon-plugins",
            "binary_version": "4.9.7+repack1-1"
          },
          {
            "binary_name": "veyon-service",
            "binary_version": "4.9.7+repack1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "veyon",
        "purl": "pkg:deb/ubuntu/veyon@4.9.7+repack1-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.7.5+repack1-1ubuntu6",
        "4.7.5+repack1-1ubuntu7",
        "4.9.7+repack1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libveyon-core",
            "binary_version": "4.9.7+repack1-1build1"
          },
          {
            "binary_name": "veyon-configurator",
            "binary_version": "4.9.7+repack1-1build1"
          },
          {
            "binary_name": "veyon-master",
            "binary_version": "4.9.7+repack1-1build1"
          },
          {
            "binary_name": "veyon-plugins",
            "binary_version": "4.9.7+repack1-1build1"
          },
          {
            "binary_name": "veyon-service",
            "binary_version": "4.9.7+repack1-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "veyon",
        "purl": "pkg:deb/ubuntu/veyon@4.9.7+repack1-1build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.9.7+repack1-1",
        "4.9.7+repack1-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference.",
  "id": "UBUNTU-CVE-2020-14397",
  "modified": "2026-05-20T14:52:13Z",
  "published": "2020-06-17T16:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-14397"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4434-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4573-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-14397"
    }
  ],
  "related": [
    "USN-4434-1",
    "USN-4573-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-14397"
  ]
}



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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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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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.