Libxslt: libxml2: heap use-after-free in libxslt caused by atype corruption in xmlattrptr

7.8 CVSS

Vulnerability Description

A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts internal memory management. When XSLT functions, such as the key() process, result in tree fragments, this corruption prevents the proper cleanup of ID attributes. As a result, the system may access freed memory, causing crashes or enabling attackers to trigger heap corruption.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Red Hat would like to thank Sergei Glazunov (Google Project Zero) for reporting this issue.

References

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CVE-2025-14512

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CVE-2025-14087

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CVE-2025-12105

Libsoup: heap use-after-free in libsoup message queue handling during http/2 read completion

High 7.5

Affected Vendor

GNOME

View all reports →

Affected Software

libxml2, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat OpenShift Container Platform 4.12, Red Hat OpenShift Container Platform 4.13, Red Hat OpenShift Container Platform 4.14, Red Hat OpenShift Container Platform 4.15, Red Hat OpenShift Container Platform 4.16, Red Hat OpenShift Container Platform 4.17, Red Hat OpenShift Container Platform 4.18, Red Hat OpenShift Container Platform 4.19, Red Hat Web Terminal 1.11 on RHEL 9, Red Hat Web Terminal 1.12 on RHEL 9, RHOSS-1.36-RHEL-8, cert-manager operator for Red Hat OpenShift 1.16, OpenShift Compliance Operator 1, OpenShift File Integrity Operator - FIO 1, Red Hat Discovery 2, Red Hat Hardened Images, Red Hat Insights proxy 1.5, Red Hat OpenShift distributed tracing 3.5.1, Red Hat Enterprise Linux 6

Vulnerable Versions:

0, 0:2.12.5-8.el10_0, 0:1.1.39-8.el10_0, 0:2.9.1-6.el7_9.12, 0:2.9.7-21.el8_10.2, 0:2.9.7-9.el8_2.4, 0:2.9.7-9.el8_4.7, 0:2.9.7-13.el8_6.11, 0:2.9.7-16.el8_8.10, 0:2.9.13-11.el9_6, 0:2.9.13-1.el9_0.6, 0:2.9.13-3.el9_2.8, 0:2.9.13-11.el9_4, 412.86.202509030110-0, 413.92.202509030117-0, 414.92.202508270040-0, 415.92.202508192014-0, 416.94.202508261955-0, 417.94.202508141510-0, 418.94.202508261658-0, 4.19.9.6.202508271124-0, 1.11-19, 1.11-8, 1.12-4, 1.36.0-11, 1.36.0-10, 1.36.0-4, 1.36.0-9, 1.36.0-12, 1.36.0-18, 1.36.0-7, v1.16.5-1760515757, 1.8.0, v1.3, 2.0.1-1754478727, 2.15.3-0.1.hum1, 1.5.5-1754504343, rhosdt-3.5-1754559657, rhosdt-3.5-1754559845, rhosdt-3.5-1754559691, rhosdt-3.5-1754559660, rhosdt-3.5-1754559663, rhosdt-3.5-1754569861, rhosdt-3.5-1754559846, rhosdt-3.5-1754559651