usn-7945-1
Vulnerability from osv_ubuntu
Published
2026-01-07 13:06
Modified
2026-06-25 10:47
Summary
libxslt vulnerability
Details
Ivan Fratric discovered that Libxslt was vulnerable to type confusion when performing XML transformations. An attacker could possibly use this issue to cause Libxslt to crash or corrupt memory, causing a denial of service or undefined behavior.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2025-7424",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:14.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libxslt1.1",
"binary_version": "1.1.28-2ubuntu0.2+esm5"
},
{
"binary_name": "python-libxslt1",
"binary_version": "1.1.28-2ubuntu0.2+esm5"
},
{
"binary_name": "xsltproc",
"binary_version": "1.1.28-2ubuntu0.2+esm5"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "libxslt",
"purl": "pkg:deb/ubuntu/libxslt@1.1.28-2ubuntu0.2+esm5?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.28-2ubuntu0.2+esm5"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.28-2",
"1.1.28-2build1",
"1.1.28-2ubuntu0.1",
"1.1.28-2ubuntu0.2",
"1.1.28-2ubuntu0.2+esm1",
"1.1.28-2ubuntu0.2+esm2",
"1.1.28-2ubuntu0.2+esm3",
"1.1.28-2ubuntu0.2+esm4"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2025-7424",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libxslt1.1",
"binary_version": "1.1.28-2.1ubuntu0.3+esm4"
},
{
"binary_name": "python-libxslt1",
"binary_version": "1.1.28-2.1ubuntu0.3+esm4"
},
{
"binary_name": "xsltproc",
"binary_version": "1.1.28-2.1ubuntu0.3+esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "libxslt",
"purl": "pkg:deb/ubuntu/libxslt@1.1.28-2.1ubuntu0.3+esm4?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.28-2.1ubuntu0.3+esm4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.28-2build2",
"1.1.28-2.1",
"1.1.28-2.1ubuntu0.1",
"1.1.28-2.1ubuntu0.2",
"1.1.28-2.1ubuntu0.3",
"1.1.28-2.1ubuntu0.3+esm1",
"1.1.28-2.1ubuntu0.3+esm2",
"1.1.28-2.1ubuntu0.3+esm3"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2025-7424",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libxslt1.1",
"binary_version": "1.1.29-5ubuntu0.3+esm3"
},
{
"binary_name": "python-libxslt1",
"binary_version": "1.1.29-5ubuntu0.3+esm3"
},
{
"binary_name": "xsltproc",
"binary_version": "1.1.29-5ubuntu0.3+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "libxslt",
"purl": "pkg:deb/ubuntu/libxslt@1.1.29-5ubuntu0.3+esm3?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.29-5ubuntu0.3+esm3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.29-2.1ubuntu1",
"1.1.29-4",
"1.1.29-5",
"1.1.29-5ubuntu0.1",
"1.1.29-5ubuntu0.2",
"1.1.29-5ubuntu0.3",
"1.1.29-5ubuntu0.3+esm1",
"1.1.29-5ubuntu0.3+esm2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2025-7424",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libxslt1.1",
"binary_version": "1.1.34-4ubuntu0.20.04.3+esm2"
},
{
"binary_name": "xsltproc",
"binary_version": "1.1.34-4ubuntu0.20.04.3+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "libxslt",
"purl": "pkg:deb/ubuntu/libxslt@1.1.34-4ubuntu0.20.04.3+esm2?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.34-4ubuntu0.20.04.3+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.33-0ubuntu1",
"1.1.33-0ubuntu2",
"1.1.33-0ubuntu3",
"1.1.34-1",
"1.1.34-1ubuntu1",
"1.1.34-3",
"1.1.34-4",
"1.1.34-4ubuntu0.20.04.1",
"1.1.34-4ubuntu0.20.04.2",
"1.1.34-4ubuntu0.20.04.3",
"1.1.34-4ubuntu0.20.04.3+esm1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2025-7424",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libxslt1.1",
"binary_version": "1.1.34-4ubuntu0.22.04.5"
},
{
"binary_name": "xsltproc",
"binary_version": "1.1.34-4ubuntu0.22.04.5"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "libxslt",
"purl": "pkg:deb/ubuntu/libxslt@1.1.34-4ubuntu0.22.04.5?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.34-4ubuntu0.22.04.5"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.34-4",
"1.1.34-4build1",
"1.1.34-4build2",
"1.1.34-4ubuntu0.22.04.1",
"1.1.34-4ubuntu0.22.04.2",
"1.1.34-4ubuntu0.22.04.3",
"1.1.34-4ubuntu0.22.04.4"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2025-7424",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libxslt1.1",
"binary_version": "1.1.39-0exp1ubuntu0.24.04.3"
},
{
"binary_name": "xsltproc",
"binary_version": "1.1.39-0exp1ubuntu0.24.04.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "libxslt",
"purl": "pkg:deb/ubuntu/libxslt@1.1.39-0exp1ubuntu0.24.04.3?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.39-0exp1ubuntu0.24.04.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.35-1",
"1.1.39-0exp1",
"1.1.39-0exp1build1",
"1.1.39-0exp1ubuntu0.24.04.1",
"1.1.39-0exp1ubuntu0.24.04.2"
]
}
],
"aliases": [],
"details": "Ivan Fratric discovered that Libxslt was vulnerable to type confusion when\nperforming XML transformations. An attacker could possibly use this issue\nto cause Libxslt to crash or corrupt memory, causing a denial of service or\nundefined behavior.",
"id": "USN-7945-1",
"modified": "2026-06-25T10:47:02Z",
"published": "2026-01-07T13:06:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7945-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-7424"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "libxslt vulnerability",
"upstream": [
"UBUNTU-CVE-2025-7424"
]
}
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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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