USN-7945-1

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Source
https://ubuntu.com/security/notices/USN-7945-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7945-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-7945-1
Upstream
Related
Published
2026-01-07T13:06:15.420272Z
Modified
2026-01-08T06:30:01.617401Z
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

Affected packages

Ubuntu:22.04:LTS

libxslt

Package

Name
libxslt
Purl
pkg:deb/ubuntu/libxslt@1.1.34-4ubuntu0.22.04.5?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.34-4ubuntu0.22.04.5

Affected versions

1.*

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxslt1-dev",
            "binary_version": "1.1.34-4ubuntu0.22.04.5"
        },
        {
            "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"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7945-1.json"

cves_map

{
    "ecosystem": "Ubuntu:22.04:LTS",
    "cves": [
        {
            "id": "CVE-2025-7424",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:24.04:LTS

libxslt

Package

Name
libxslt
Purl
pkg:deb/ubuntu/libxslt@1.1.39-0exp1ubuntu0.24.04.3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.39-0exp1ubuntu0.24.04.3

Affected versions

1.*

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxslt1-dev",
            "binary_version": "1.1.39-0exp1ubuntu0.24.04.3"
        },
        {
            "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"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7945-1.json"

cves_map

{
    "ecosystem": "Ubuntu:24.04:LTS",
    "cves": [
        {
            "id": "CVE-2025-7424",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:25.04

libxslt

Package

Name
libxslt
Purl
pkg:deb/ubuntu/libxslt@1.1.39-0exp1ubuntu4.1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.39-0exp1ubuntu4.1

Affected versions

1.*

1.1.39-0exp1ubuntu1
1.1.39-0exp1ubuntu2
1.1.39-0exp1ubuntu3
1.1.39-0exp1ubuntu4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxslt1-dev",
            "binary_version": "1.1.39-0exp1ubuntu4.1"
        },
        {
            "binary_name": "libxslt1.1",
            "binary_version": "1.1.39-0exp1ubuntu4.1"
        },
        {
            "binary_name": "xsltproc",
            "binary_version": "1.1.39-0exp1ubuntu4.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7945-1.json"

cves_map

{
    "ecosystem": "Ubuntu:25.04",
    "cves": [
        {
            "id": "CVE-2025-7424",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:Pro:14.04:LTS

libxslt

Package

Name
libxslt
Purl
pkg:deb/ubuntu/libxslt@1.1.28-2ubuntu0.2+esm5?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.28-2ubuntu0.2+esm5

Affected versions

1.*

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxslt1-dev",
            "binary_version": "1.1.28-2ubuntu0.2+esm5"
        },
        {
            "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"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7945-1.json"

cves_map

{
    "ecosystem": "Ubuntu:Pro:14.04:LTS",
    "cves": [
        {
            "id": "CVE-2025-7424",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:Pro:16.04:LTS

libxslt

Package

Name
libxslt
Purl
pkg:deb/ubuntu/libxslt@1.1.28-2.1ubuntu0.3+esm4?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.28-2.1ubuntu0.3+esm4

Affected versions

1.*

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxslt1-dev",
            "binary_version": "1.1.28-2.1ubuntu0.3+esm4"
        },
        {
            "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"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7945-1.json"

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2025-7424",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:Pro:18.04:LTS

libxslt

Package

Name
libxslt
Purl
pkg:deb/ubuntu/libxslt@1.1.29-5ubuntu0.3+esm3?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.29-5ubuntu0.3+esm3

Affected versions

1.*

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxslt1-dev",
            "binary_version": "1.1.29-5ubuntu0.3+esm3"
        },
        {
            "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"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7945-1.json"

cves_map

{
    "ecosystem": "Ubuntu:Pro:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2025-7424",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:Pro:20.04:LTS

libxslt

Package

Name
libxslt
Purl
pkg:deb/ubuntu/libxslt@1.1.34-4ubuntu0.20.04.3+esm2?arch=source&distro=esm-infra/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.34-4ubuntu0.20.04.3+esm2

Affected versions

1.*

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxslt1-dev",
            "binary_version": "1.1.34-4ubuntu0.20.04.3+esm2"
        },
        {
            "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"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7945-1.json"

cves_map

{
    "ecosystem": "Ubuntu:Pro:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2025-7424",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/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": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}