MediumFix available
unzip — security advisory
A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.
- Products
- unzip
- Affected versions
- Not specified
- Fixed versions
- 6.0-27
- CVEs
- CVE-2022-0530
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 11:09 UTC · Revision 1
Source evidence
A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.
osv:DEBIAN-CVE-2022-0530
unzip
Fixed versions: 6.0-27
unzip
Fixed versions: 6.0-27
unzip
Fixed versions: 6.0-27
Complete source record
{
"id": "acebb890897b5fbc36416ae7d01855d8297a7a5b8838e29c593f55eaf0749cc5",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-0530",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2022-0530",
"summary": "A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.",
"evidence": "osv:DEBIAN-CVE-2022-0530",
"products": [
{
"name": {
"value": "unzip",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.0-27",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "unzip",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.0-27",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "unzip",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.0-27",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2022-0530",
"aliases": [
"DEBIAN-CVE-2022-0530"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.0-27"
}
]
}
],
"package": {
"name": "unzip",
"purl": "pkg:deb/debian/unzip?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-0530.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.0-27"
}
]
}
],
"package": {
"name": "unzip",
"purl": "pkg:deb/debian/unzip?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-0530.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.0-27"
}
]
}
],
"package": {
"name": "unzip",
"purl": "pkg:deb/debian/unzip?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-0530.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-09T09:47:35.649366093Z",
"provider": "osv",
"upstream": [
"CVE-2022-0530"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2022-0530"
]
},
"related_cves": [
{
"value": "CVE-2022-0530",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 111695,
"published_at": "2022-02-09T23:15:16.677+00:00"
}