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.
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References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2023-05-29T00:00:00
Updated: 2024-08-02T14:28:51.957Z
Reserved: 2023-04-12T00:00:00
Link: CVE-2023-30571
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-05-29T20:15:09.513
Modified: 2024-11-21T08:00:26.713
Link: CVE-2023-30571
Redhat