UBUNTU-CVE-2025-49794

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Source

https://ubuntu.com/security/CVE-2025-49794

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-49794.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-49794

Upstream

CVE-2025-49794

Published

2025-06-16T16:15:00Z

Modified

2025-07-14T06:36:22.652948Z

Severity

9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
- medium

Summary

[none]

Details

A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.

References

Affected packages

Ubuntu:Pro:14.04:LTS / libxml2

Package

Name: libxml2
Purl: pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.13+esm7?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

Ubuntu:Pro:16.04:LTS / libxml2

Package

Name: libxml2
Purl: pkg:deb/ubuntu/libxml2@2.9.3+dfsg1-1ubuntu0.7+esm8?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

Ubuntu:Pro:18.04:LTS / libxml2

Package

Name: libxml2
Purl: pkg:deb/ubuntu/libxml2@2.9.4+dfsg1-6.1ubuntu1.9+esm3?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

Ubuntu:Pro:20.04:LTS / libxml2

Package

Name: libxml2
Purl: pkg:deb/ubuntu/libxml2@2.9.10+dfsg-5ubuntu0.20.04.10?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

Ubuntu:22.04:LTS / libxml2

Package

Name: libxml2
Purl: pkg:deb/ubuntu/libxml2@2.9.13+dfsg-1ubuntu0.7?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

Ubuntu:24.04:LTS / libxml2

Package

Name: libxml2
Purl: pkg:deb/ubuntu/libxml2@2.9.14+dfsg-1.3ubuntu3.3?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

Ubuntu:25.04 / libxml2

Package

Name: libxml2
Purl: pkg:deb/ubuntu/libxml2@2.12.7+dfsg+really2.9.14-0.4ubuntu0.1?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