ubuntu-cve-2023-30571
Vulnerability from osv_ubuntu
Published
2023-05-29 20:15
Modified
2026-07-21 20:46
Summary
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.
Severity
5.3 (Medium)
N/A (UNKNOWN)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "bsdcpio",
"binary_version": "3.1.2-7ubuntu2.8+esm5"
},
{
"binary_name": "bsdtar",
"binary_version": "3.1.2-7ubuntu2.8+esm5"
},
{
"binary_name": "libarchive13",
"binary_version": "3.1.2-7ubuntu2.8+esm5"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "libarchive",
"purl": "pkg:deb/ubuntu/libarchive@3.1.2-7ubuntu2.8+esm5?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.1.2-5ubuntu1",
"3.1.2-7ubuntu1",
"3.1.2-7ubuntu2",
"3.1.2-7ubuntu2.1",
"3.1.2-7ubuntu2.2",
"3.1.2-7ubuntu2.3",
"3.1.2-7ubuntu2.4",
"3.1.2-7ubuntu2.6",
"3.1.2-7ubuntu2.7",
"3.1.2-7ubuntu2.8",
"3.1.2-7ubuntu2.8+esm1",
"3.1.2-7ubuntu2.8+esm3",
"3.1.2-7ubuntu2.8+esm4",
"3.1.2-7ubuntu2.8+esm5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "bsdcpio",
"binary_version": "3.1.2-11ubuntu0.16.04.8+esm3"
},
{
"binary_name": "bsdtar",
"binary_version": "3.1.2-11ubuntu0.16.04.8+esm3"
},
{
"binary_name": "libarchive13",
"binary_version": "3.1.2-11ubuntu0.16.04.8+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "libarchive",
"purl": "pkg:deb/ubuntu/libarchive@3.1.2-11ubuntu0.16.04.8+esm3?arch=source\u0026distro=esm-infra-legacy/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.1.2-11build1",
"3.1.2-11ubuntu0.16.04.1",
"3.1.2-11ubuntu0.16.04.2",
"3.1.2-11ubuntu0.16.04.3",
"3.1.2-11ubuntu0.16.04.4",
"3.1.2-11ubuntu0.16.04.5",
"3.1.2-11ubuntu0.16.04.6",
"3.1.2-11ubuntu0.16.04.7",
"3.1.2-11ubuntu0.16.04.8",
"3.1.2-11ubuntu0.16.04.8+esm1",
"3.1.2-11ubuntu0.16.04.8+esm2",
"3.1.2-11ubuntu0.16.04.8+esm3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "bsdcpio",
"binary_version": "3.2.2-3.1ubuntu0.7+esm3"
},
{
"binary_name": "bsdtar",
"binary_version": "3.2.2-3.1ubuntu0.7+esm3"
},
{
"binary_name": "libarchive-tools",
"binary_version": "3.2.2-3.1ubuntu0.7+esm3"
},
{
"binary_name": "libarchive13",
"binary_version": "3.2.2-3.1ubuntu0.7+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "libarchive",
"purl": "pkg:deb/ubuntu/libarchive@3.2.2-3.1ubuntu0.7+esm3?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.2.2-3.1",
"3.2.2-3.1ubuntu0.1",
"3.2.2-3.1ubuntu0.2",
"3.2.2-3.1ubuntu0.3",
"3.2.2-3.1ubuntu0.4",
"3.2.2-3.1ubuntu0.5",
"3.2.2-3.1ubuntu0.6",
"3.2.2-3.1ubuntu0.7",
"3.2.2-3.1ubuntu0.7+esm1",
"3.2.2-3.1ubuntu0.7+esm2",
"3.2.2-3.1ubuntu0.7+esm3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libarchive-tools",
"binary_version": "3.4.0-2ubuntu1.5+esm3"
},
{
"binary_name": "libarchive13",
"binary_version": "3.4.0-2ubuntu1.5+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "libarchive",
"purl": "pkg:deb/ubuntu/libarchive@3.4.0-2ubuntu1.5+esm3?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.4.0-1",
"3.4.0-1build1",
"3.4.0-1ubuntu2",
"3.4.0-2ubuntu1",
"3.4.0-2ubuntu1.1",
"3.4.0-2ubuntu1.2",
"3.4.0-2ubuntu1.3",
"3.4.0-2ubuntu1.4",
"3.4.0-2ubuntu1.5",
"3.4.0-2ubuntu1.5+esm1",
"3.4.0-2ubuntu1.5+esm2",
"3.4.0-2ubuntu1.5+esm3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libarchive-tools",
"binary_version": "3.6.0-1ubuntu1.8"
},
{
"binary_name": "libarchive13",
"binary_version": "3.6.0-1ubuntu1.8"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "libarchive",
"purl": "pkg:deb/ubuntu/libarchive@3.6.0-1ubuntu1.8?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.4.3-2",
"3.4.3-2build1",
"3.5.2-1",
"3.5.2-1ubuntu1",
"3.6.0-1ubuntu1",
"3.6.0-1ubuntu1.1",
"3.6.0-1ubuntu1.2",
"3.6.0-1ubuntu1.3",
"3.6.0-1ubuntu1.4",
"3.6.0-1ubuntu1.5",
"3.6.0-1ubuntu1.6",
"3.6.0-1ubuntu1.7",
"3.6.0-1ubuntu1.8"
]
}
],
"aliases": [],
"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.",
"id": "UBUNTU-CVE-2023-30571",
"modified": "2026-07-21T20:46:44Z",
"published": "2023-05-29T20:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-30571"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-30571"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "negligible",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-30571"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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