Vulnerability-Lookup

UBUNTU-CVE-2025-2817

Vulnerability from osv_ubuntu – Published: 2025-04-29 14:15 – Updated: 2025-04-30 16:30 – Source website

Withdrawn 2025-06-23

Details

Mozilla Firefox's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird ESR < 128.10.

References

URL

Type

	https://ubuntu.com/security/CVE-2025-2817	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-2817	REPORT
	https://www.mozilla.org/en-US/security/advisories…	REPORT
	https://www.mozilla.org/en-US/security/advisories…	REPORT
	https://www.mozilla.org/en-US/security/advisories…	REPORT
	https://bugzilla.mozilla.org/show_bug.cgi?id=1917536	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "mozjs52",
        "purl": "pkg:deb/ubuntu/mozjs52@52.9.1-0ubuntu0.18.04.1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "52.3.1-0ubuntu3",
        "52.3.1-7fakesync1",
        "52.8.1-0ubuntu0.18.04.1",
        "52.9.1-0ubuntu0.18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "mozjs38",
        "purl": "pkg:deb/ubuntu/mozjs38@38.8.0~repack1-0ubuntu4?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "38.8.0~repack1-0ubuntu1",
        "38.8.0~repack1-0ubuntu3",
        "38.8.0~repack1-0ubuntu4"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "firefox",
        "purl": "pkg:deb/ubuntu/firefox@136.0+build3-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "69.0.3+build1-0ubuntu1",
        "70.0+build2-0ubuntu1",
        "70.0+build2-0ubuntu2",
        "70.0.1+build1-0ubuntu2",
        "71.0+build2-0ubuntu2",
        "71.0+build5-0ubuntu1",
        "72.0.1+build1-0ubuntu1",
        "72.0.2+build1-0ubuntu1",
        "73.0+build1-0ubuntu1",
        "73.0+build2-0ubuntu1",
        "73.0+build3-0ubuntu1",
        "73.0.1+build1-0ubuntu1",
        "74.0+build1-0ubuntu1",
        "74.0+build2-0ubuntu1",
        "74.0+build2-0ubuntu2",
        "74.0+build3-0ubuntu1",
        "75.0+build3-0ubuntu1",
        "76.0+build2-0ubuntu0.20.04.1",
        "76.0.1+build1-0ubuntu0.20.04.1",
        "77.0.1+build1-0ubuntu0.20.04.1",
        "78.0.1+build1-0ubuntu0.20.04.1",
        "78.0.2+build2-0ubuntu0.20.04.1",
        "79.0+build1-0ubuntu0.20.04.1",
        "80.0+build2-0ubuntu0.20.04.1",
        "80.0.1+build1-0ubuntu0.20.04.1",
        "81.0+build2-0ubuntu0.20.04.1",
        "81.0.2+build1-0ubuntu0.20.04.1",
        "82.0+build2-0ubuntu0.20.04.1",
        "82.0.2+build1-0ubuntu0.20.04.1",
        "82.0.3+build1-0ubuntu0.20.04.1",
        "83.0+build2-0ubuntu0.20.04.1",
        "84.0+build3-0ubuntu0.20.04.1",
        "84.0.1+build1-0ubuntu0.20.04.1",
        "84.0.2+build1-0ubuntu0.20.04.1",
        "85.0+build1-0ubuntu0.20.04.1",
        "85.0.1+build1-0ubuntu0.20.04.1",
        "86.0+build3-0ubuntu0.20.04.1",
        "86.0.1+build1-0ubuntu0.20.04.1",
        "87.0+build3-0ubuntu0.20.04.2",
        "88.0+build2-0ubuntu0.20.04.1",
        "88.0.1+build1-0ubuntu0.20.04.2",
        "89.0+build2-0ubuntu0.20.04.2",
        "89.0.1+build1-0ubuntu0.20.04.1",
        "89.0.2+build1-0ubuntu0.20.04.1",
        "90.0+build1-0ubuntu0.20.04.1",
        "90.0.2+build1-0ubuntu0.20.04.1",
        "91.0+build2-0ubuntu0.20.04.1",
        "91.0.1+build1-0ubuntu0.20.04.1",
        "91.0.2+build1-0ubuntu0.20.04.1",
        "92.0+build3-0ubuntu0.20.04.1",
        "93.0+build1-0ubuntu0.20.04.1",
        "94.0+build3-0ubuntu0.20.04.1",
        "95.0+build1-0ubuntu0.20.04.1",
        "95.0.1+build2-0ubuntu0.20.04.1",
        "96.0+build2-0ubuntu0.20.04.1",
        "97.0+build2-0ubuntu0.20.04.1",
        "97.0.2+build1-0ubuntu0.20.04.1",
        "98.0+build3-0ubuntu0.20.04.2",
        "98.0.1+build2-0ubuntu0.20.04.1",
        "98.0.2+build1-0ubuntu0.20.04.1",
        "99.0+build2-0ubuntu0.20.04.2",
        "100.0+build2-0ubuntu0.20.04.1",
        "100.0.2+build1-0ubuntu0.20.04.1",
        "101.0.1+build1-0ubuntu0.20.04.1",
        "102.0+build2-0ubuntu0.20.04.1",
        "103.0+build1-0ubuntu0.20.04.1",
        "104.0+build3-0ubuntu0.20.04.1",
        "105.0+build2-0ubuntu0.20.04.1",
        "106.0.2+build1-0ubuntu0.20.04.1",
        "106.0.5+build1-0ubuntu0.20.04.1",
        "107.0+build2-0ubuntu0.20.04.1",
        "108.0+build2-0ubuntu0.20.04.1",
        "108.0.1+build1-0ubuntu0.20.04.1",
        "108.0.2+build1-0ubuntu0.20.04.1",
        "109.0+build2-0ubuntu0.20.04.1",
        "109.0.1+build1-0ubuntu0.20.04.2",
        "110.0+build3-0ubuntu0.20.04.1",
        "110.0.1+build2-0ubuntu0.20.04.1",
        "111.0+build2-0ubuntu0.20.04.1",
        "111.0.1+build2-0ubuntu0.20.04.1",
        "112.0+build2-0ubuntu0.20.04.1",
        "112.0.1+build1-0ubuntu0.20.04.1",
        "112.0.2+build1-0ubuntu0.20.04.1",
        "113.0+build2-0ubuntu0.20.04.1",
        "113.0.1+build1-0ubuntu0.20.04.1",
        "113.0.2+build1-0ubuntu0.20.04.1",
        "114.0+build3-0ubuntu0.20.04.1",
        "114.0.1+build1-0ubuntu0.20.04.1",
        "114.0.2+build1-0ubuntu0.20.04.1",
        "115.0+build2-0ubuntu0.20.04.3",
        "115.0.2+build1-0ubuntu0.20.04.1",
        "116.0+build2-0ubuntu0.20.04.2",
        "116.0.2+build1-0ubuntu0.20.04.1",
        "116.0.3+build2-0ubuntu0.20.04.1",
        "117.0+build2-0ubuntu0.20.04.1",
        "117.0.1+build2-0ubuntu0.20.04.1",
        "118.0.1+build1-0ubuntu0.20.04.1",
        "118.0.2+build2-0ubuntu0.20.04.1",
        "119.0+build2-0ubuntu0.20.04.1",
        "119.0.1+build1-0ubuntu0.20.04.1",
        "120.0+build2-0ubuntu0.20.04.1",
        "120.0.1+build1-0ubuntu0.20.04.1",
        "121.0+build1-0ubuntu0.20.04.1",
        "121.0.1+build1-0ubuntu0.20.04.1",
        "122.0+build2-0ubuntu0.20.04.1",
        "122.0.1+build1-0ubuntu0.20.04.1",
        "123.0+build3-0ubuntu0.20.04.1",
        "123.0.1+build1-0ubuntu0.20.04.1",
        "124.0+build1-0ubuntu0.20.04.1",
        "124.0.1+build1-0ubuntu0.20.04.1",
        "124.0.2+build1-0ubuntu0.20.04.1",
        "125.0.2+build1-0ubuntu0.20.04.2",
        "125.0.3+build1-0ubuntu0.20.04.1",
        "126.0+build2-0ubuntu0.20.04.1",
        "126.0.1+build1-0ubuntu0.20.04.1",
        "127.0.2+build1-0ubuntu0.20.04.1",
        "128.0+build2-0ubuntu0.20.04.1",
        "129.0.1+build1-0ubuntu0.20.04.1",
        "129.0.2+build1-0ubuntu0.20.04.1",
        "130.0+build2-0ubuntu0.20.04.1",
        "130.0.1+build1-0ubuntu0.20.04.1",
        "131.0+build1.1-0ubuntu0.20.04.1",
        "131.0.2+build1-0ubuntu0.20.04.1",
        "131.0.3+build1-0ubuntu0.20.04.1",
        "132.0+build1-0ubuntu0.20.04.1",
        "133.0+build2-0ubuntu0.20.04.1",
        "134.0+build1-0ubuntu0.20.04.1",
        "135.0+build2-0ubuntu0.20.04.1",
        "136.0+build3-0ubuntu0.20.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "mozjs52",
        "purl": "pkg:deb/ubuntu/mozjs52@52.9.1-1ubuntu3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "52.9.1-1build1",
        "52.9.1-1ubuntu3"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "mozjs68",
        "purl": "pkg:deb/ubuntu/mozjs68@68.6.0-1ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "68.5.0-1~fakesync",
        "68.5.0-2~fakesync",
        "68.6.0-1",
        "68.6.0-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:115.18.0+build1-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:68.1.2+build1-0ubuntu1",
        "1:68.1.2+build1-0ubuntu2",
        "1:68.2.1+build1-0ubuntu1",
        "1:68.2.2+build1-0ubuntu1",
        "1:68.3.0+build2-0ubuntu1",
        "1:68.3.1+build1-0ubuntu2",
        "1:68.4.1+build1-0ubuntu1",
        "1:68.4.2+build2-0ubuntu1",
        "1:68.5.0+build1-0ubuntu1",
        "1:68.6.0+build2-0ubuntu1",
        "1:68.7.0+build1-0ubuntu1",
        "1:68.7.0+build1-0ubuntu2",
        "1:68.8.0+build2-0ubuntu0.20.04.2",
        "1:68.10.0+build1-0ubuntu0.20.04.1",
        "1:78.7.1+build1-0ubuntu0.20.04.1",
        "1:78.8.1+build1-0ubuntu0.20.04.1",
        "1:78.11.0+build1-0ubuntu0.20.04.2",
        "1:78.13.0+build1-0ubuntu0.20.04.2",
        "1:78.14.0+build1-0ubuntu0.20.04.1",
        "1:78.14.0+build1-0ubuntu0.20.04.2",
        "1:91.5.0+build1-0ubuntu0.20.04.1",
        "1:91.7.0+build2-0ubuntu0.20.04.1",
        "1:91.8.1+build1-0ubuntu0.20.04.1",
        "1:91.9.1+build1-0ubuntu0.20.04.1",
        "1:91.11.0+build2-0ubuntu0.20.04.1",
        "1:102.2.2+build1-0ubuntu0.20.04.1",
        "1:102.4.2+build2-0ubuntu0.20.04.1",
        "1:102.7.1+build2-0ubuntu0.20.04.1",
        "1:102.8.0+build2-0ubuntu0.20.04.1",
        "1:102.9.0+build1-0ubuntu0.20.04.1",
        "1:102.10.0+build2-0ubuntu0.20.04.1",
        "1:102.11.0+build1-0ubuntu0.20.04.1",
        "1:102.13.0+build1-0ubuntu0.20.04.1",
        "1:102.15.0+build1-0ubuntu0.20.04.1",
        "1:102.15.1+build1-0ubuntu0.20.04.1",
        "1:115.3.1+build1-0ubuntu0.20.04.1",
        "1:115.4.1+build1-0ubuntu0.20.04.1",
        "1:115.5.0+build1-0ubuntu0.20.04.1",
        "1:115.6.0+build2-0ubuntu0.20.04.1",
        "1:115.8.1+build1-0ubuntu0.20.04.1",
        "1:115.9.0+build1-0ubuntu0.20.04.1",
        "1:115.10.1+build1-0ubuntu0.20.04.1",
        "1:115.11.0+build2-0ubuntu0.20.04.1",
        "1:115.12.0+build3-0ubuntu0.20.04.1",
        "1:115.13.0+build5-0ubuntu0.20.04.1",
        "1:115.15.0+build1-0ubuntu0.20.04.1",
        "1:115.16.0+build2-0ubuntu0.20.04.1",
        "1:115.18.0+build1-0ubuntu0.20.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "mozjs102",
        "purl": "pkg:deb/ubuntu/mozjs102@102.15.1-0ubuntu0.22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "102.11.0-0ubuntu0.22.04.1",
        "102.12.0-0ubuntu0.22.04.1",
        "102.13.0-0ubuntu0.22.04.1",
        "102.15.1-0ubuntu0.22.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "mozjs78",
        "purl": "pkg:deb/ubuntu/mozjs78@78.15.0-4ubuntu1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "78.13.0-1",
        "78.15.0-2",
        "78.15.0-4ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "mozjs91",
        "purl": "pkg:deb/ubuntu/mozjs91@91.10.0-0ubuntu1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "91.5.1-0ubuntu1",
        "91.6.0-1",
        "91.6.0-2",
        "91.7.0-2",
        "91.10.0-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "thunderbird",
        "purl": "pkg:deb/ubuntu/thunderbird@1:115.18.0+build1-0ubuntu0.22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:91.1.2+build1-0ubuntu1",
        "1:91.3.0+build2-0ubuntu1",
        "1:91.3.1+build1-0ubuntu1",
        "1:91.3.2+build1-0ubuntu1",
        "1:91.4.0+build1.1-0ubuntu1",
        "1:91.4.0+build2-0ubuntu1",
        "1:91.5.0+build1-0ubuntu1",
        "1:91.5.1+build1-0ubuntu1",
        "1:91.6.1+build1-0ubuntu1",
        "1:91.7.0+build1-0ubuntu1",
        "1:91.7.0+build2-0ubuntu1",
        "1:91.8.0+build2-0ubuntu1",
        "1:91.9.1+build1-0ubuntu0.22.04.1",
        "1:91.11.0+build2-0ubuntu0.22.04.1",
        "1:102.2.2+build1-0ubuntu0.22.04.1",
        "1:102.4.2+build2-0ubuntu0.22.04.1",
        "1:102.7.1+build2-0ubuntu0.22.04.1",
        "1:102.8.0+build2-0ubuntu0.22.04.1",
        "1:102.9.0+build1-0ubuntu0.22.04.1",
        "1:102.10.0+build2-0ubuntu0.22.04.1",
        "1:102.11.0+build1-0ubuntu0.22.04.1",
        "1:102.13.0+build1-0ubuntu0.22.04.1",
        "1:102.15.0+build1-0ubuntu0.22.04.1",
        "1:102.15.1+build1-0ubuntu0.22.04.1",
        "1:115.3.1+build1-0ubuntu0.22.04.2",
        "1:115.4.1+build1-0ubuntu0.22.04.1",
        "1:115.5.0+build1-0ubuntu0.22.04.1",
        "1:115.6.0+build2-0ubuntu0.22.04.1",
        "1:115.8.1+build1-0ubuntu0.22.04.1",
        "1:115.9.0+build1-0ubuntu0.22.04.1",
        "1:115.10.1+build1-0ubuntu0.22.04.1",
        "1:115.11.0+build2-0ubuntu0.22.04.1",
        "1:115.12.0+build3-0ubuntu0.22.04.1",
        "1:115.13.0+build5-0ubuntu0.22.04.1",
        "1:115.15.0+build1-0ubuntu0.22.04.1",
        "1:115.16.0+build2-0ubuntu0.22.04.1",
        "1:115.18.0+build1-0ubuntu0.22.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:24.10",
        "name": "mozjs115",
        "purl": "pkg:deb/ubuntu/mozjs115@115.16.0-1?arch=source\u0026distro=oracular"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "115.10.0-1",
        "115.11.0-1",
        "115.12.0-1",
        "115.12.0-1build1",
        "115.13.0-1",
        "115.14.0-1",
        "115.16.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "mozjs102",
        "purl": "pkg:deb/ubuntu/mozjs102@102.15.1-3ubuntu2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "102.15.1-1",
        "102.15.1-3ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "mozjs115",
        "purl": "pkg:deb/ubuntu/mozjs115@115.10.0-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "115.3.0-0ubuntu1",
        "115.4.0-2",
        "115.5.0-1",
        "115.6.0-1",
        "115.7.0-4",
        "115.8.0-1",
        "115.9.0-1",
        "115.9.0-1build1",
        "115.10.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "ubuntu_priority": "medium"
      },
      "package": {
        "ecosystem": "Ubuntu:25.04",
        "name": "mozjs115",
        "purl": "pkg:deb/ubuntu/mozjs115@115.21.0-1?arch=source\u0026distro=plucky"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "115.16.0-1",
        "115.17.0-1",
        "115.18.0-1",
        "115.19.0-1",
        "115.20.0-1",
        "115.21.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Mozilla Firefox\u0027s update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox \u003c 138, Firefox ESR \u003c 128.10, Firefox ESR \u003c 115.23, Thunderbird \u003c 138, and Thunderbird ESR \u003c 128.10.",
  "id": "UBUNTU-CVE-2025-2817",
  "modified": "2025-04-30T16:30:25Z",
  "published": "2025-04-29T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-2817"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-2817"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2025-28/#CVE-2025-2817"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2025-29/#CVE-2025-2817"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2025-32/#CVE-2025-2817"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1917536"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-28/"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-29/"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-30/"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-31/"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-32/"
    }
  ],
  "related": [
    "CVE-2025-2817"
  ],
  "schema_version": "1.6.3",
  "withdrawn": "2025-06-23T16:00:08Z"
}

CVE-2025-2817 (GCVE-0-2025-2817)

Vulnerability from cvelistv5 – Published: 2025-04-29 13:13 – Updated: 2026-04-13 14:27

Title

Privilege escalation in Thunderbird Updater

Summary

Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-30 03:56 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

mozilla mitre root

References

7 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1917536
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Mozilla	Firefox	Unaffected: 115.23 , ≤ 115.* (rpm) Unaffected: 128.10 , ≤ 128.* (rpm) Unaffected: 138 , ≤ * (rpm)
Mozilla	Thunderbird	Unaffected: 128.10 , ≤ 128.* (rpm) Unaffected: 138 , ≤ * (rpm)

Credits

Dong-uk Kim (@justlikebono)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-2817",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-30T03:56:27.621494Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-22",
                "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T18:27:57.172Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:46:41.197Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00022.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "115.*",
              "status": "unaffected",
              "version": "115.23",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "128.*",
              "status": "unaffected",
              "version": "128.10",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "138",
              "versionType": "rpm"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "128.*",
              "status": "unaffected",
              "version": "128.10",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "138",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Dong-uk Kim (@justlikebono)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Thunderbird\u0027s update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10."
            }
          ],
          "value": "Thunderbird\u0027s update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-13T14:27:13.873Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1917536"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-28/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-29/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-30/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-31/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-32/"
        }
      ],
      "title": "Privilege escalation in Thunderbird Updater"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2025-2817",
    "datePublished": "2025-04-29T13:13:33.783Z",
    "dateReserved": "2025-03-26T14:08:36.146Z",
    "dateUpdated": "2026-04-13T14:27:13.873Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

UBUNTU-CVE-2025-2817

CVE-2025-2817 (GCVE-0-2025-2817)

Tags

Sightings

Nomenclature

Related by attack behaviour