UBUNTU-CVE-2025-8732

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Source
https://ubuntu.com/security/CVE-2025-8732
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-8732.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2025-8732
Upstream
Published
2025-08-08T17:15:00Z
Modified
2025-10-31T05:15:48Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 1.9 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function xmlParseSGMLCatalog of the component xmlcatalog. The manipulation leads to uncontrolled recursion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains, that "[t]he issue can only be triggered with untrusted SGML catalogs and it makes absolutely no sense to use untrusted catalogs. I also doubt that anyone is still using SGML catalogs at all."

References

Affected packages

Ubuntu:22.04:LTS

libxml2

Package

Name
libxml2
Purl
pkg:deb/ubuntu/libxml2@2.9.13+dfsg-1ubuntu0.10?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.9.12+dfsg-4
2.9.12+dfsg-5
2.9.12+dfsg-6
2.9.13+dfsg-1
2.9.13+dfsg-1build1
2.9.13+dfsg-1ubuntu0.1
2.9.13+dfsg-1ubuntu0.2
2.9.13+dfsg-1ubuntu0.3
2.9.13+dfsg-1ubuntu0.4
2.9.13+dfsg-1ubuntu0.5
2.9.13+dfsg-1ubuntu0.6
2.9.13+dfsg-1ubuntu0.7
2.9.13+dfsg-1ubuntu0.8
2.9.13+dfsg-1ubuntu0.9
2.9.13+dfsg-1ubuntu0.10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxml2",
            "binary_version": "2.9.13+dfsg-1ubuntu0.10"
        },
        {
            "binary_name": "libxml2-dev",
            "binary_version": "2.9.13+dfsg-1ubuntu0.10"
        },
        {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.13+dfsg-1ubuntu0.10"
        },
        {
            "binary_name": "python3-libxml2",
            "binary_version": "2.9.13+dfsg-1ubuntu0.10"
        }
    ],
    "priority_reason": "Only a recursion issue when parsing untrusted catalogs"
}

Ubuntu:24.04:LTS

libxml2

Package

Name
libxml2
Purl
pkg:deb/ubuntu/libxml2@2.9.14+dfsg-1.3ubuntu3.6?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.9.14+dfsg-1.3
2.9.14+dfsg-1.3build1
2.9.14+dfsg-1.3build2
2.9.14+dfsg-1.3build3
2.9.14+dfsg-1.3ubuntu1
2.9.14+dfsg-1.3ubuntu2
2.9.14+dfsg-1.3ubuntu3
2.9.14+dfsg-1.3ubuntu3.1
2.9.14+dfsg-1.3ubuntu3.2
2.9.14+dfsg-1.3ubuntu3.3
2.9.14+dfsg-1.3ubuntu3.4
2.9.14+dfsg-1.3ubuntu3.5
2.9.14+dfsg-1.3ubuntu3.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxml2",
            "binary_version": "2.9.14+dfsg-1.3ubuntu3.6"
        },
        {
            "binary_name": "libxml2-dev",
            "binary_version": "2.9.14+dfsg-1.3ubuntu3.6"
        },
        {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.14+dfsg-1.3ubuntu3.6"
        },
        {
            "binary_name": "python3-libxml2",
            "binary_version": "2.9.14+dfsg-1.3ubuntu3.6"
        }
    ],
    "priority_reason": "Only a recursion issue when parsing untrusted catalogs"
}

Ubuntu:25.04

libxml2

Package

Name
libxml2
Purl
pkg:deb/ubuntu/libxml2@2.12.7+dfsg+really2.9.14-0.4ubuntu0.4?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.12.7+dfsg-3
2.12.7+dfsg+really2.9.14-0.2build1
2.12.7+dfsg+really2.9.14-0.2ubuntu2
2.12.7+dfsg+really2.9.14-0.2ubuntu3
2.12.7+dfsg+really2.9.14-0.2ubuntu4
2.12.7+dfsg+really2.9.14-0.2ubuntu5
2.12.7+dfsg+really2.9.14-0.4
2.12.7+dfsg+really2.9.14-0.4ubuntu0.1
2.12.7+dfsg+really2.9.14-0.4ubuntu0.2
2.12.7+dfsg+really2.9.14-0.4ubuntu0.3
2.12.7+dfsg+really2.9.14-0.4ubuntu0.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxml2",
            "binary_version": "2.12.7+dfsg+really2.9.14-0.4ubuntu0.4"
        },
        {
            "binary_name": "libxml2-dev",
            "binary_version": "2.12.7+dfsg+really2.9.14-0.4ubuntu0.4"
        },
        {
            "binary_name": "libxml2-utils",
            "binary_version": "2.12.7+dfsg+really2.9.14-0.4ubuntu0.4"
        },
        {
            "binary_name": "python3-libxml2",
            "binary_version": "2.12.7+dfsg+really2.9.14-0.4ubuntu0.4"
        }
    ],
    "priority_reason": "Only a recursion issue when parsing untrusted catalogs"
}

Ubuntu:25.10

libxml2

Package

Name
libxml2
Purl
pkg:deb/ubuntu/libxml2@2.14.5+dfsg-0.2?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.12.7+dfsg+really2.9.14-0.4
2.12.7+dfsg+really2.9.14-0.4ubuntu0.1
2.12.7+dfsg+really2.9.14-1
2.14.3+dfsg-0exp1
2.14.3+dfsg-0exp2
2.14.3+dfsg-0exp3
2.14.4+dfsg-0exp1
2.14.5+dfsg-0exp1
2.14.5+dfsg-0exp2
2.14.5+dfsg-0.1
2.14.5+dfsg-0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxml2-16",
            "binary_version": "2.14.5+dfsg-0.2"
        },
        {
            "binary_name": "libxml2-dev",
            "binary_version": "2.14.5+dfsg-0.2"
        },
        {
            "binary_name": "libxml2-utils",
            "binary_version": "2.14.5+dfsg-0.2"
        },
        {
            "binary_name": "python3-libxml2",
            "binary_version": "2.14.5+dfsg-0.2"
        }
    ],
    "priority_reason": "Only a recursion issue when parsing untrusted catalogs"
}

Ubuntu:Pro:14.04:LTS

libxml2

Package

Name
libxml2
Purl
pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.13+esm9?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.9.1+dfsg1-3ubuntu2
2.9.1+dfsg1-3ubuntu3
2.9.1+dfsg1-3ubuntu4
2.9.1+dfsg1-3ubuntu4.1
2.9.1+dfsg1-3ubuntu4.2
2.9.1+dfsg1-3ubuntu4.3
2.9.1+dfsg1-3ubuntu4.4
2.9.1+dfsg1-3ubuntu4.5
2.9.1+dfsg1-3ubuntu4.6
2.9.1+dfsg1-3ubuntu4.7
2.9.1+dfsg1-3ubuntu4.8
2.9.1+dfsg1-3ubuntu4.9
2.9.1+dfsg1-3ubuntu4.10
2.9.1+dfsg1-3ubuntu4.11
2.9.1+dfsg1-3ubuntu4.12
2.9.1+dfsg1-3ubuntu4.13
2.9.1+dfsg1-3ubuntu4.13+esm1
2.9.1+dfsg1-3ubuntu4.13+esm2
2.9.1+dfsg1-3ubuntu4.13+esm3
2.9.1+dfsg1-3ubuntu4.13+esm4
2.9.1+dfsg1-3ubuntu4.13+esm5
2.9.1+dfsg1-3ubuntu4.13+esm6
2.9.1+dfsg1-3ubuntu4.13+esm7
2.9.1+dfsg1-3ubuntu4.13+esm8
2.9.1+dfsg1-3ubuntu4.13+esm9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxml2",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm9"
        },
        {
            "binary_name": "libxml2-dev",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm9"
        },
        {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm9"
        },
        {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm9"
        }
    ],
    "priority_reason": "Only a recursion issue when parsing untrusted catalogs"
}

Ubuntu:Pro:16.04:LTS

libxml2

Package

Name
libxml2
Purl
pkg:deb/ubuntu/libxml2@2.9.3+dfsg1-1ubuntu0.7+esm10?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.9.2+zdfsg1-4
2.9.2+zdfsg1-4ubuntu1
2.9.2+zdfsg1-4ubuntu2
2.9.2+zdfsg1-4ubuntu3
2.9.3+dfsg1-1
2.9.3+dfsg1-1ubuntu0.1
2.9.3+dfsg1-1ubuntu0.2
2.9.3+dfsg1-1ubuntu0.3
2.9.3+dfsg1-1ubuntu0.4
2.9.3+dfsg1-1ubuntu0.5
2.9.3+dfsg1-1ubuntu0.6
2.9.3+dfsg1-1ubuntu0.7
2.9.3+dfsg1-1ubuntu0.7+esm1
2.9.3+dfsg1-1ubuntu0.7+esm2
2.9.3+dfsg1-1ubuntu0.7+esm3
2.9.3+dfsg1-1ubuntu0.7+esm4
2.9.3+dfsg1-1ubuntu0.7+esm5
2.9.3+dfsg1-1ubuntu0.7+esm6
2.9.3+dfsg1-1ubuntu0.7+esm7
2.9.3+dfsg1-1ubuntu0.7+esm8
2.9.3+dfsg1-1ubuntu0.7+esm9
2.9.3+dfsg1-1ubuntu0.7+esm10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxml2",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm10"
        },
        {
            "binary_name": "libxml2-dev",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm10"
        },
        {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm10"
        },
        {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm10"
        }
    ],
    "priority_reason": "Only a recursion issue when parsing untrusted catalogs"
}

Ubuntu:Pro:18.04:LTS

libxml2

Package

Name
libxml2
Purl
pkg:deb/ubuntu/libxml2@2.9.4+dfsg1-6.1ubuntu1.9+esm5?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.9.4+dfsg1-4ubuntu1
2.9.4+dfsg1-5ubuntu1
2.9.4+dfsg1-5ubuntu2
2.9.4+dfsg1-5.1ubuntu1
2.9.4+dfsg1-5.2ubuntu1
2.9.4+dfsg1-6.1ubuntu1
2.9.4+dfsg1-6.1ubuntu1.2
2.9.4+dfsg1-6.1ubuntu1.3
2.9.4+dfsg1-6.1ubuntu1.4
2.9.4+dfsg1-6.1ubuntu1.5
2.9.4+dfsg1-6.1ubuntu1.6
2.9.4+dfsg1-6.1ubuntu1.7
2.9.4+dfsg1-6.1ubuntu1.8
2.9.4+dfsg1-6.1ubuntu1.9
2.9.4+dfsg1-6.1ubuntu1.9+esm1
2.9.4+dfsg1-6.1ubuntu1.9+esm2
2.9.4+dfsg1-6.1ubuntu1.9+esm3
2.9.4+dfsg1-6.1ubuntu1.9+esm4
2.9.4+dfsg1-6.1ubuntu1.9+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxml2",
            "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm5"
        },
        {
            "binary_name": "libxml2-dev",
            "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm5"
        },
        {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm5"
        },
        {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm5"
        },
        {
            "binary_name": "python3-libxml2",
            "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm5"
        }
    ],
    "priority_reason": "Only a recursion issue when parsing untrusted catalogs"
}

Ubuntu:Pro:20.04:LTS

libxml2

Package

Name
libxml2
Purl
pkg:deb/ubuntu/libxml2@2.9.10+dfsg-5ubuntu0.20.04.10+esm2?arch=source&distro=esm-infra/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.9.4+dfsg1-7ubuntu3
2.9.4+dfsg1-7ubuntu5
2.9.4+dfsg1-8ubuntu1
2.9.4+dfsg1-8ubuntu2
2.9.4+dfsg1-8ubuntu3
2.9.10+dfsg-1ubuntu3
2.9.10+dfsg-4build1
2.9.10+dfsg-5
2.9.10+dfsg-5ubuntu0.20.04.1
2.9.10+dfsg-5ubuntu0.20.04.2
2.9.10+dfsg-5ubuntu0.20.04.3
2.9.10+dfsg-5ubuntu0.20.04.4
2.9.10+dfsg-5ubuntu0.20.04.5
2.9.10+dfsg-5ubuntu0.20.04.6
2.9.10+dfsg-5ubuntu0.20.04.7
2.9.10+dfsg-5ubuntu0.20.04.8
2.9.10+dfsg-5ubuntu0.20.04.9
2.9.10+dfsg-5ubuntu0.20.04.10
2.9.10+dfsg-5ubuntu0.20.04.10+esm1
2.9.10+dfsg-5ubuntu0.20.04.10+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libxml2",
            "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.10+esm2"
        },
        {
            "binary_name": "libxml2-dev",
            "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.10+esm2"
        },
        {
            "binary_name": "libxml2-utils",
            "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.10+esm2"
        },
        {
            "binary_name": "python-libxml2",
            "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.10+esm2"
        },
        {
            "binary_name": "python3-libxml2",
            "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.10+esm2"
        }
    ],
    "priority_reason": "Only a recursion issue when parsing untrusted catalogs"
}