ubuntu-cve-2021-33586
Vulnerability from osv_ubuntu
Published
2021-05-27 05:15
Modified
2025-01-13 10:22
Summary
Details

InspIRCd 3.8.0 through 3.9.x before 3.10.0 allows any user (able to connect to the server) to access recently deallocated memory, aka the "malformed PONG" issue.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "inspircd",
        "purl": "pkg:deb/ubuntu/inspircd@2.0.20-5build2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.20-3",
        "2.0.20-4",
        "2.0.20-5",
        "2.0.20-5build1",
        "2.0.20-5build2"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "inspircd",
        "purl": "pkg:deb/ubuntu/inspircd@2.0.24-1ubuntu1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.24-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "inspircd",
        "purl": "pkg:deb/ubuntu/inspircd@3.4.0-2ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.27-1ubuntu2",
        "3.4.0-2ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "inspircd",
        "purl": "pkg:deb/ubuntu/inspircd@3.12.0-1build1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.1-2build1",
        "3.12.0-1",
        "3.12.0-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "InspIRCd 3.8.0 through 3.9.x before 3.10.0 allows any user (able to connect to the server) to access recently deallocated memory, aka the \"malformed PONG\" issue.",
  "id": "UBUNTU-CVE-2021-33586",
  "modified": "2025-01-13T10:22:34Z",
  "published": "2021-05-27T05:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-33586"
    },
    {
      "type": "REPORT",
      "url": "https://docs.inspircd.org/security/2021-01/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/inspircd/inspircd/commit/4350a11c663b0d75f8119743bffb7736d87abd4d"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-33586"
    }
  ],
  "related": [
    "CVE-2021-33586"
  ],
  "schema_version": "1.6.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "withdrawn": "2025-06-23T15:54:03Z"
}



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