{"id":"CVE-2023-30571","details":"Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories.","modified":"2026-05-15T04:06:50.254690517Z","published":"2023-05-29T00:00:00Z","related":["CGA-hp7j-9x7f-mgpx"],"database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30571.json"},"references":[{"type":"WEB","url":"https://groups.google.com/g/libarchive-announce"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30571.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30571"},{"type":"REPORT","url":"https://github.com/libarchive/libarchive/issues/1876"}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AC:H/AV:L/A:N/C:L/I:L/PR:L/S:C/UI:R"}]}