Overview
- Description
- 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.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 5.3
- Impact score
- 4.2
- Exploitability score
- 1
- Vector string
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
- Severity
- MEDIUM
Weaknesses
- nvd@nist.gov
- CWE-362
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3B32A1BB-6BB8-4D7F-ADCA-62727C4BA74E",
"versionEndIncluding": "3.6.2"
}
],
"operator": "OR"
}
]
}
]