usn-6589-1
Vulnerability from osv_ubuntu
Published
2024-01-18 17:55
Modified
2026-04-27 14:11
Summary
filezilla vulnerability
Details

Fabian Baeumer, Marcus Brinkmann and Joerg Schwenk discovered that the SSH protocol used in FileZilla is prone to a prefix truncation attack, known as the "Terrapin attack". A remote attacker could use this issue to downgrade or disable some security features and obtain sensitive information.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-48795",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "filezilla",
            "binary_version": "3.46.3-1ubuntu0.1"
          },
          {
            "binary_name": "filezilla-common",
            "binary_version": "3.46.3-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "filezilla",
        "purl": "pkg:deb/ubuntu/filezilla@3.46.3-1ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.46.3-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.39.0-2",
        "3.45.1-3",
        "3.45.1-3build1",
        "3.46.3-1~build1",
        "3.46.3-1",
        "3.46.3-1build1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-48795",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "filezilla",
            "binary_version": "3.58.0-1ubuntu0.1"
          },
          {
            "binary_name": "filezilla-common",
            "binary_version": "3.58.0-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "filezilla",
        "purl": "pkg:deb/ubuntu/filezilla@3.58.0-1ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.58.0-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.52.2-3",
        "3.56.0-1",
        "3.56.2-1",
        "3.57.0-1",
        "3.57.0-1build1",
        "3.58.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Fabian Baeumer, Marcus Brinkmann and Joerg Schwenk discovered that the SSH\nprotocol used in FileZilla is prone to a prefix truncation attack, known as\nthe \"Terrapin attack\". A remote attacker could use this issue to downgrade or\ndisable some security features and obtain sensitive information.\n",
  "id": "USN-6589-1",
  "modified": "2026-04-27T14:11:32Z",
  "published": "2024-01-18T17:55:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6589-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-48795"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "filezilla vulnerability",
  "upstream": [
    "UBUNTU-CVE-2023-48795"
  ]
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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