CVE-2025-6021

Published: Jun 12, 2025

Modified: May 12, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.

Vendor	Product	Versions
Unknown	libxml2	affected `0 - < 2.14.4`
Red Hat	Red Hat Enterprise Linux 10	unaffected `0:2.12.5-7.el10_0 - < *`
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected `0:2.9.1-6.el7_9.10 - < *`
Red Hat	Red Hat Enterprise Linux 8	unaffected `0:2.9.7-21.el8_10.1 - < *`
Red Hat	Red Hat Enterprise Linux 8	unaffected `0:2.9.7-21.el8_10.1 - < *`
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support	unaffected `0:2.9.7-9.el8_2.3 - < *`
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected `0:2.9.7-9.el8_4.6 - < *`
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	unaffected `0:2.9.7-9.el8_4.6 - < *`
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected `0:2.9.7-13.el8_6.10 - < *`
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	unaffected `0:2.9.7-13.el8_6.10 - < *`
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	unaffected `0:2.9.7-13.el8_6.10 - < *`
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	unaffected `0:2.9.7-16.el8_8.9 - < *`
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	unaffected `0:2.9.7-16.el8_8.9 - < *`
Red Hat	Red Hat Enterprise Linux 9	unaffected `0:2.9.13-10.el9_6 - < *`
Red Hat	Red Hat Enterprise Linux 9	unaffected `0:2.9.13-10.el9_6 - < *`
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	unaffected `0:2.9.13-1.el9_0.5 - < *`
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	unaffected `0:2.9.13-3.el9_2.7 - < *`
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	unaffected `0:2.9.13-10.el9_4 - < *`
Red Hat	Red Hat JBoss Core Services 2.4.62.SP2	All versions
Red Hat	Red Hat OpenShift Container Platform 4.12	unaffected `412.86.202509030110-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.13	unaffected `413.92.202509030117-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.14	unaffected `414.92.202508041909-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.15	unaffected `415.92.202508192014-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.16	unaffected `416.94.202508050040-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.17	unaffected `417.94.202508141510-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.18	unaffected `418.94.202508060022-0 - < *`
Red Hat	Red Hat OpenShift Container Platform 4.19	unaffected `4.19.9.6.202507230107-0 - < *`
Red Hat	Red Hat Discovery 2	unaffected `sha256:ad07f55ee75fb20310c88f154a04665bd8465d138d66c665c300f61447858344 - < *`
Red Hat	Red Hat Hardened Images	unaffected `2.15.2-0.3.hum1 - < *`
Red Hat	Red Hat Insights proxy 1.5	unaffected `sha256:c26d589f12647890b67aaa986f54d3f7c6f7f2563fb5a73f38d559e6138739d7 - < *`
Red Hat	Red Hat Enterprise Linux 6	All versions