UBUNTU-CVE-2022-43634 (CVE-2022-43634)

Vulnerability from osv_ubuntu – Published: 2023-03-29 19:15 – Updated: 2026-06-22 07:18 – Source website
VLAI
Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dsi_writeinit function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-17646.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
high
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "netatalk",
            "binary_version": "2.2.2-1ubuntu2.2+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "netatalk",
        "purl": "pkg:deb/ubuntu/netatalk@2.2.2-1ubuntu2.2+esm4?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.2-1ubuntu1",
        "2.2.2-1ubuntu2",
        "2.2.2-1ubuntu2.2",
        "2.2.2-1ubuntu2.2+esm1",
        "2.2.2-1ubuntu2.2+esm2",
        "2.2.2-1ubuntu2.2+esm3",
        "2.2.2-1ubuntu2.2+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "netatalk",
            "binary_version": "2.2.5-1ubuntu0.2+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "netatalk",
        "purl": "pkg:deb/ubuntu/netatalk@2.2.5-1ubuntu0.2+esm4?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.5-1",
        "2.2.5-1ubuntu0.2",
        "2.2.5-1ubuntu0.2+esm1",
        "2.2.5-1ubuntu0.2+esm2",
        "2.2.5-1ubuntu0.2+esm3",
        "2.2.5-1ubuntu0.2+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "netatalk",
            "binary_version": "2.2.6-1ubuntu0.18.04.2+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "netatalk",
        "purl": "pkg:deb/ubuntu/netatalk@2.2.6-1ubuntu0.18.04.2+esm4?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.6-1",
        "2.2.6-1ubuntu0.18.04.2",
        "2.2.6-1ubuntu0.18.04.2+esm1",
        "2.2.6-1ubuntu0.18.04.2+esm2",
        "2.2.6-1ubuntu0.18.04.2+esm3",
        "2.2.6-1ubuntu0.18.04.2+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "netatalk",
            "binary_version": "3.1.12~ds-4ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "netatalk",
        "purl": "pkg:deb/ubuntu/netatalk@3.1.12~ds-4ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.12~ds-4ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.1.12~ds-3",
        "3.1.12~ds-4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "netatalk",
            "binary_version": "3.1.12~ds-9ubuntu0.22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "netatalk",
        "purl": "pkg:deb/ubuntu/netatalk@3.1.12~ds-9ubuntu0.22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.12~ds-9ubuntu0.22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.1.12~ds-9",
        "3.1.12~ds-9build1"
      ]
    }
  ],
  "aliases": [],
  "details": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dsi_writeinit function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-17646.",
  "id": "UBUNTU-CVE-2022-43634",
  "modified": "2026-06-22T07:18:34Z",
  "published": "2023-03-29T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-43634"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Netatalk/Netatalk/pull/186"
    },
    {
      "type": "REPORT",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-23-094/"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6146-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-43634"
    }
  ],
  "related": [
    "USN-6146-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "high",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-43634"
  ]
}



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