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Ubuntu 25.04: libxml2 Critical Denial of Service USN-7743-1 CVE-2025-9714

ubuntu
Calendar Grey September 10, 2025
Dist Ubuntu Esm H88
An urgent necessity for updates arises due to a denial of service vulnerability in libxml2, impacting multiple versions of Ubuntu.
libxml2 could be made to crash if it received specially crafted input.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: libxml2 could be made to crash if it received specially crafted input. Software Description: - libxml2: GNOME XML library Details: Nikita Sveshnikov discovered that libxml2 incorrectly handled recursion when processing XPath expressions. An attacker could possibly use this issue to cause a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu libxml2 XPath

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 25.04 libxml2 2.12.7+dfsg+really2.9.14-0.4ubuntu0.3 libxml2-dev 2.12.7+dfsg+really2.9.14-0.4ubuntu0.3 libxml2-utils 2.12.7+dfsg+really2.9.14-0.4ubuntu0.3 Ubuntu 24.04 LTS libxml2 2.9.14+dfsg-1.3ubuntu3.5 libxml2-dev 2.9.14+dfsg-1.3ubuntu3.5 libxml2-utils 2.9.14+dfsg-1.3ubuntu3.5 Ubuntu 22.04 LTS libxml2 2.9.13+dfsg-1ubuntu0.9 libxml2-dev 2.9.13+dfsg-1ubuntu0.9 libxml2-utils 2.9.13+dfsg-1ubuntu0.9 Ubuntu 20.04 LTS libxml2 2.9.10+dfsg-5ubuntu0.20.04.10+esm2 Available with Ubuntu Pro libxml2-dev 2.9.10+dfsg-5ubuntu0.20.04.10+esm2 Available with Ubuntu Pro libxml2-utils 2.9.10+dfsg-5ubuntu0.20.04.10+esm2 Available with Ubuntu Pro Ubuntu 18.04 LTS libxml2 2.9.4+dfsg1-6.1ubuntu1.9+esm5 Available with Ubuntu Pro libxml2-dev 2.9.4+dfsg1-6.1ubuntu1.9+esm5 Available with Ubuntu Pro libxml2-utils 2.9.4+dfsg1-6.1ubuntu1.9+esm5 Available with Ubuntu Pro Ubuntu 16.04 LTS libxml2 2.9.3+dfsg1-1ubuntu0.7+esm10 Available with Ubuntu Pro libxml2-dev 2.9.3+dfsg1-1ubuntu0.7+esm10 Available with Ubuntu Pro libxml2-utils 2.9.3+dfsg1-1ubuntu0.7+esm10 Available with Ubuntu Pro Ubuntu 14.04 LTS libxml2 2.9.1+dfsg1-3ubuntu4.13+esm9 Available with Ubuntu Pro libxml2-dev 2.9.1+dfsg1-3ubuntu4.13+esm9 Available with Ubuntu Pro libxml2-utils 2.9.1+dfsg1-3ubuntu4.13+esm9 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7743-1

CVE-2025-9714

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7743-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu libxml2 XPath

Package Information

https://launchpad.net/ubuntu/+source/libxml2/2.12.7+dfsg+really2.9.14-0.4ubuntu0.3 https://launchpad.net/ubuntu/+source/libxml2/2.9.14+dfsg-1.3ubuntu3.5 https://launchpad.net/ubuntu/+source/libxml2/2.9.13+dfsg-1ubuntu0.9

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