{"id":"UBUNTU-CVE-2022-25327","details":"The PAM module for fscrypt doesn't adequately validate fscrypt metadata files, allowing users to create malicious metadata files that prevent other users from logging in. A local user can cause a denial of service by creating a fscrypt metadata file that prevents other users from logging into the system. We recommend upgrading to version 0.3.3 or above","modified":"2025-10-24T04:53:32Z","published":"2022-02-25T11:15:00Z","upstream":["CVE-2022-25327"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-25327"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2022/02/24/1"},{"type":"REPORT","url":"https://github.com/google/fscrypt/commit/1a47718420317f893831b0223153d56005d5b02b"},{"type":"REPORT","url":"https://github.com/google/fscrypt/commit/74e870b7bd1585b4b509da47e0e75db66336e576"},{"type":"REPORT","url":"https://github.com/google/fscrypt/commit/b44fbe71e1e93c47050322af51725bac997641e0"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-25327"}],"affected":[{"package":{"name":"fscrypt","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/fscrypt@0.2.2-0ubuntu2.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.2-0ubuntu2","0.2.2-0ubuntu2.1"],"ecosystem_specific":{"binaries":[{"binary_name":"fscrypt","binary_version":"0.2.2-0ubuntu2.1"},{"binary_name":"golang-github-google-fscrypt-dev","binary_version":"0.2.2-0ubuntu2.1"},{"binary_name":"libpam-fscrypt","binary_version":"0.2.2-0ubuntu2.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-25327.json"}},{"package":{"name":"fscrypt","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/fscrypt@0.2.5-2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.4-2","0.2.5-1","0.2.5-2"],"ecosystem_specific":{"binaries":[{"binary_name":"fscrypt","binary_version":"0.2.5-2"},{"binary_name":"libpam-fscrypt","binary_version":"0.2.5-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-25327.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}