GSD-2018-20021

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2018-20021",
    "description": "LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM",
    "id": "GSD-2018-20021",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-20021.html",
      "https://www.debian.org/security/2019/dsa-4383",
      "https://ubuntu.com/security/CVE-2018-20021",
      "https://advisories.mageia.org/CVE-2018-20021.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-20021"
      ],
      "details": "LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM",
      "id": "GSD-2018-20021",
      "modified": "2023-12-13T01:22:29.492520Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "vulnerability@kaspersky.com",
        "ID": "CVE-2018-20021",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "LibVNC",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Denial of Service"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "DSA-4383",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2019/dsa-4383"
          },
          {
            "name": "[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"
          },
          {
            "name": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-031-libvnc-infinite-loop/",
            "refsource": "MISC",
            "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-031-libvnc-infinite-loop/"
          },
          {
            "name": "USN-3877-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/3877-1/"
          },
          {
            "name": "GLSA-201908-05",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/201908-05"
          },
          {
            "name": "[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"
          },
          {
            "name": "[debian-lts-announce] 20191129 [SECURITY] [DLA 2016-1] ssvnc security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html"
          },
          {
            "name": "[debian-lts-announce] 20191221 [SECURITY] [DLA 2045-1] tightvnc security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html"
          },
          {
            "name": "GLSA-202006-06",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202006-06"
          },
          {
            "name": "USN-4547-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4547-1/"
          },
          {
            "name": "USN-4547-2",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4547-2/"
          },
          {
            "name": "USN-4587-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4587-1/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.9.12",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "vulnerability@kaspersky.com",
          "ID": "CVE-2018-20021"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM"
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-835"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-031-libvnc-infinite-loop/",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-031-libvnc-infinite-loop/"
            },
            {
              "name": "[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"
            },
            {
              "name": "USN-3877-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://usn.ubuntu.com/3877-1/"
            },
            {
              "name": "DSA-4383",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2019/dsa-4383"
            },
            {
              "name": "GLSA-201908-05",
              "refsource": "GENTOO",
              "tags": [],
              "url": "https://security.gentoo.org/glsa/201908-05"
            },
            {
              "name": "[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update",
              "refsource": "MLIST",
              "tags": [],
              "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"
            },
            {
              "name": "[debian-lts-announce] 20191129 [SECURITY] [DLA 2016-1] ssvnc security update",
              "refsource": "MLIST",
              "tags": [],
              "url": "https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html"
            },
            {
              "name": "[debian-lts-announce] 20191221 [SECURITY] [DLA 2045-1] tightvnc security update",
              "refsource": "MLIST",
              "tags": [],
              "url": "https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html"
            },
            {
              "name": "GLSA-202006-06",
              "refsource": "GENTOO",
              "tags": [],
              "url": "https://security.gentoo.org/glsa/202006-06"
            },
            {
              "name": "USN-4547-1",
              "refsource": "UBUNTU",
              "tags": [],
              "url": "https://usn.ubuntu.com/4547-1/"
            },
            {
              "name": "USN-4547-2",
              "refsource": "UBUNTU",
              "tags": [],
              "url": "https://usn.ubuntu.com/4547-2/"
            },
            {
              "name": "USN-4587-1",
              "refsource": "UBUNTU",
              "tags": [],
              "url": "https://usn.ubuntu.com/4587-1/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.8,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2020-10-23T13:15Z",
      "publishedDate": "2018-12-19T16:29Z"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…