Debian Security Bug TrackerDEBIANCVE:CVE-2023-30571CVE-2023-30571
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
EPSS
Percentile
5.1%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | libarchive | <= 3.6.2-1+deb12u1 | libarchive_3.6.2-1+deb12u1_all.deb |
| Debian | 11 | all | libarchive | <= 3.4.3-2+deb11u1 | libarchive_3.4.3-2+deb11u1_all.deb |
| Debian | 999 | all | libarchive | <= 3.7.4-1 | libarchive_3.7.4-1_all.deb |
| Debian | 13 | all | libarchive | <= 3.7.4-1 | libarchive_3.7.4-1_all.deb |
Related
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
EPSS
Percentile
5.1%