{"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":"2026-08-12T03:51:11.294379207Z","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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libarchive/libarchive","events":[{"introduced":"0"},{"fixed":"ba80276ccc3c941c4918ec6e2460059f0c525c43"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"3.6.2"},{"last_affected":"3.6.2"}],"source":["DESCRIPTION","CPE_RANGE"],"cpe":"cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*"}}],"versions":["v3.6.1","v3.6.0","v3.5.2","v3.5.1","v3.5.0","v3.4.3","v3.4.2","v3.4.1","v3.4.0","v3.3.3","v3.3.2","v3.3.1","v3.3.0","v3.2.2","v3.2.1","v3.2.0","v3.1.900a","v3.0.1b","v3.0.0a"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-30571.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AC:H/AV:L/A:N/C:L/I:L/PR:L/S:C/UI:R"}]}