FKIE_CVE-2022-29234

Vulnerability from fkie_nvd - Published: 2022-06-02 00:15 - Updated: 2026-06-17 04:39
Severity
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Summary
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4.1, an attacker could send messages to a locked chat within a grace period of 5s any lock setting in the meeting was changed. The attacker needs to be a participant in the meeting. Versions 2.3.18 and 2.4.1 contain a patch for this issue. There are currently no known workarounds.
References
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/pull/13850Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/pull/14265Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.1Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-36vc-c338-6xjvPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/pull/13850Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/pull/14265Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.1Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-36vc-c338-6xjvPatch, Third Party Advisory
Impacted products
Vendor Product Version
bigbluebutton bigbluebutton *
bigbluebutton bigbluebutton *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "bigbluebutton",
          "vendor": "bigbluebutton",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.2, \u003c 2.3.18"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.4, \u003c 2.4.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "60814A0D-57C0-4407-B7DD-26A9D5C3DBB1",
              "versionEndExcluding": "2.3.18",
              "versionStartIncluding": "2.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B0BE662F-4DB9-457E-8C04-F16081946A64",
              "versionEndExcluding": "2.4.1",
              "versionStartIncluding": "2.4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4.1, an attacker could send messages to a locked chat within a grace period of 5s any lock setting in the meeting was changed. The attacker needs to be a participant in the meeting. Versions 2.3.18 and 2.4.1 contain a patch for this issue. There are currently no known workarounds."
    },
    {
      "lang": "es",
      "value": "BigBlueButton es un sistema de conferencias web de c\u00f3digo abierto. A partir de la versi\u00f3n 2.2 y versiones hasta 2.3.18 y 2.4.1, un atacante pod\u00eda enviar mensajes a un chat bloqueado dentro de un per\u00edodo de gracia de 5s despu\u00e9s de la configuraci\u00f3n del bloqueo. El atacante debe ser un participante en la reuni\u00f3n. Las versiones 2.3.18 y 2.4.1 contienen un parche para este problema. Actualmente no son conocidas mitigaciones"
    }
  ],
  "id": "CVE-2022-29234",
  "lastModified": "2026-06-17T04:39:53.207",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-29234",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-23T14:06:17.770450Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-06-02T00:15:08.290",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/13850"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14265"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.1"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-36vc-c338-6xjv"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/13850"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14265"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-36vc-c338-6xjv"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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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

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.