LowFix available
glib2.0 — security advisory
A flaw was found in glib. An integer overflow during temporary file creation leads to an out-of-bounds memory access, allowing an attacker to potentially perform path traversal or access private temporary file content by creating symbolic links. This vulnerability allows a local attacker to manipulate file paths and access unauthorized data. The core issue stems from insufficient validation of file path lengths during temporary file operations.
- Products
- glib2.0
- Affected versions
- 2.74.6-2, 2.74.6-2+deb12u1, 2.74.6-2+deb12u2, 2.74.6-2+deb12u3, 2.74.6-2+deb12u4, 2.74.6-2+deb12u5, 2.74.6-2+deb12u6, 2.84.3-1, 2.84.4-1, 2.84.4-2
- Fixed versions
- 2.74.6-2+deb12u7, 2.84.4-1, 2.84.4-3~deb13u1
- CVEs
- CVE-2025-7039
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:37 UTC · Revision 1
Source evidence
A flaw was found in glib. An integer overflow during temporary file creation leads to an out-of-bounds memory access, allowing an attacker to potentially perform path traversal or access private temporary file content by creating symbolic links. This vulnerability allows a local attacker to manipulate file paths and access unauthorized data. The core issue stems from insufficient validation of file path lengths during temporary file operations.
osv:DEBIAN-CVE-2025-7039
glib2.0
Fixed versions: 2.74.6-2+deb12u7
glib2.0
Fixed versions: 2.84.4-3~deb13u1
glib2.0
Fixed versions: 2.84.4-1
Complete source record
{
"id": "904827bb8faeab8bc4a26f030162b90cfb250df1cd67798710c6dcfbb2eb66ad",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2025-7039",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2025-7039",
"summary": "A flaw was found in glib. An integer overflow during temporary file creation leads to an out-of-bounds memory access, allowing an attacker to potentially perform path traversal or access private temporary file content by creating symbolic links. This vulnerability allows a local attacker to manipulate file paths and access unauthorized data. The core issue stems from insufficient validation of file path lengths during temporary file operations.",
"evidence": "osv:DEBIAN-CVE-2025-7039",
"products": [
{
"name": {
"value": "glib2.0",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.74.6-2+deb12u7",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "2.74.6-2",
"evidence": "/affected/0/versions"
},
{
"value": "2.74.6-2+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "2.74.6-2+deb12u2",
"evidence": "/affected/0/versions"
},
{
"value": "2.74.6-2+deb12u3",
"evidence": "/affected/0/versions"
},
{
"value": "2.74.6-2+deb12u4",
"evidence": "/affected/0/versions"
},
{
"value": "2.74.6-2+deb12u5",
"evidence": "/affected/0/versions"
},
{
"value": "2.74.6-2+deb12u6",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "glib2.0",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.84.4-3~deb13u1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "2.84.3-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.84.4-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.84.4-2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "glib2.0",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.84.4-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "2.84.3-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "low",
"structured": {
"id": "DEBIAN-CVE-2025-7039",
"aliases": [
"DEBIAN-CVE-2025-7039"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.74.6-2+deb12u7"
}
]
}
],
"package": {
"name": "glib2.0",
"purl": "pkg:deb/debian/glib2.0?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2.74.6-2",
"2.74.6-2+deb12u1",
"2.74.6-2+deb12u2",
"2.74.6-2+deb12u3",
"2.74.6-2+deb12u4",
"2.74.6-2+deb12u5",
"2.74.6-2+deb12u6"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-7039.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.84.4-3~deb13u1"
}
]
}
],
"package": {
"name": "glib2.0",
"purl": "pkg:deb/debian/glib2.0?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.84.3-1",
"2.84.4-1",
"2.84.4-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-7039.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.84.4-1"
}
]
}
],
"package": {
"name": "glib2.0",
"purl": "pkg:deb/debian/glib2.0?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.84.3-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-7039.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T17:47:26.142241514Z",
"provider": "osv",
"upstream": [
"CVE-2025-7039"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2025-7039"
]
},
"related_cves": [
{
"value": "CVE-2025-7039",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 416907,
"published_at": "2025-09-03T02:15:38.12+00:00"
}