usn-2365-1
Vulnerability from osv_ubuntu
Published
2014-09-29 17:12
Modified
2026-04-27 14:11
Summary
libvncserver vulnerabilities
Details

Nicolas Ruff discovered that LibVNCServer incorrectly handled memory when being advertised large screen sizes by the server. If a user were tricked into connecting to a malicious server, an attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2014-6051, CVE-2014-6052)

Nicolas Ruff discovered that LibVNCServer incorrectly handled large ClientCutText messages. A remote attacker could use this issue to cause a server to crash, resulting in a denial of service. (CVE-2014-6053)

Nicolas Ruff discovered that LibVNCServer incorrectly handled zero scaling factor values. A remote attacker could use this issue to cause a server to crash, resulting in a denial of service. (CVE-2014-6054)

Nicolas Ruff discovered that LibVNCServer incorrectly handled memory in the file transfer feature. A remote attacker could use this issue to cause a server to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-6055)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2014-6051",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2014-6052",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2014-6053",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2014-6054",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2014-6055",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "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"
        }
      ],
      "versions": [
        "0.9.9+dfsg-1",
        "0.9.9+dfsg-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Nicolas Ruff discovered that LibVNCServer incorrectly handled memory when\nbeing advertised large screen sizes by the server. If a user were tricked\ninto connecting to a malicious server, an attacker could use this issue to\ncause a denial of service, or possibly execute arbitrary code.\n(CVE-2014-6051, CVE-2014-6052)\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled large\nClientCutText messages. A remote attacker could use this issue to cause a\nserver to crash, resulting in a denial of service. (CVE-2014-6053)\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled zero scaling\nfactor values. A remote attacker could use this issue to cause a server to\ncrash, resulting in a denial of service. (CVE-2014-6054)\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled memory in the\nfile transfer feature. A remote attacker could use this issue to cause a\nserver to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2014-6055)\n",
  "id": "USN-2365-1",
  "modified": "2026-04-27T14:11:21Z",
  "published": "2014-09-29T17:12:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2365-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-6051"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-6052"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-6053"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-6054"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-6055"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libvncserver vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2014-6051",
    "UBUNTU-CVE-2014-6052",
    "UBUNTU-CVE-2014-6053",
    "UBUNTU-CVE-2014-6054",
    "UBUNTU-CVE-2014-6055"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.