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OpenAdvisories
Critical · 9.1 CVE-2025-49796 EUVD-2025-18415GHSA-83xx-9f6p-vwfj

Libxml: type confusion leads to denial of service (dos)

Published Jun 16, 2025 · Updated Nov 4, 2026 · Assigned by redhat

Vendor: Red Hat Product: cert-manager operator for Red Hat OpenShift 1.16 Product: OpenShift File Integrity Operator - FIO 1 Product: Red Hat Discovery 2 Product: Red Hat Enterprise Linux 10 Product: Red Hat Enterprise Linux 6 Product: Red Hat Enterprise Linux 7 Extended Lifecycle Support Product: Red Hat Enterprise Linux 8 Product: Red Hat Enterprise Linux 8.2 Advanced Update Support Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Product: Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Product: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Product: Red Hat Enterprise Linux 8.6 Telecommunications Update Service Product: Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Product: Red Hat Enterprise Linux 8.8 Telecommunications Update Service Product: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Product: Red Hat Enterprise Linux 9 Product: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Product: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Product: Red Hat Enterprise Linux 9.4 Extended Update Support Product: Red Hat Hardened Images Product: Red Hat Insights proxy 1.5 Product: Red Hat JBoss Core Services 2.4.62.SP2 Product: Red Hat OpenShift Container Platform 4.12 Product: Red Hat OpenShift Container Platform 4.13 Product: Red Hat OpenShift Container Platform 4.14 Product: Red Hat OpenShift Container Platform 4.15 Product: Red Hat OpenShift Container Platform 4.16 Product: Red Hat OpenShift Container Platform 4.17 Product: Red Hat OpenShift Container Platform 4.18 Product: Red Hat OpenShift Container Platform 4.19 Product: Red Hat OpenShift Container Platform 4.20 Product: Red Hat Web Terminal 1.11 on RHEL 9 Product: Red Hat Web Terminal 1.12 on RHEL 9 Product: RHOSS-1.36-RHEL-8 Package: libxml2 Package: libxml2 Package: libxml2 Package: libxml2 Platform: Linux Ecosystem: Alpine Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory.

Affected products

VendorProductAffectedFixed
— libxml2 < 2.15.0 2.15.0
Red Hat Red Hat Enterprise Linux 10 — —
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support — —
Red Hat Red Hat Enterprise Linux 8 — —
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support — —
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support — —
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On — —
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support — —
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service — —
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions — —
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service — —
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions — —
Red Hat Red Hat Enterprise Linux 9 — —
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions — —
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions — —
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support — —
Red Hat Red Hat JBoss Core Services 2.4.62.SP2 — —
Red Hat Red Hat OpenShift Container Platform 4.12 — —
Red Hat Red Hat OpenShift Container Platform 4.13 — —
Red Hat Red Hat OpenShift Container Platform 4.14 — —
Red Hat Red Hat OpenShift Container Platform 4.15 — —
Red Hat Red Hat OpenShift Container Platform 4.16 — —
Red Hat Red Hat OpenShift Container Platform 4.17 — —
Red Hat Red Hat OpenShift Container Platform 4.18 — —
Red Hat Red Hat OpenShift Container Platform 4.19 — —
Red Hat Red Hat OpenShift Container Platform 4.20 — —
Red Hat Red Hat Web Terminal 1.11 on RHEL 9 — —
Red Hat Red Hat Web Terminal 1.12 on RHEL 9 — —
Red Hat RHOSS-1.36-RHEL-8 — —
Red Hat cert-manager operator for Red Hat OpenShift 1.16 — —
Red Hat OpenShift File Integrity Operator - FIO 1 — —
Red Hat Red Hat Discovery 2 — —
Red Hat Red Hat Hardened Images — —
Red Hat Red Hat Insights proxy 1.5 — —
Red Hat Red Hat Enterprise Linux 6 — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 libxml2 2.12.7+dfsg+really2.9.14-2 —
Debian 13 libxml2 2.12.7+dfsg+really2.9.14-2 —
Debian 12 libxml2 2.9.14+dfsg-1.3~deb12u3 —
Debian 11 libxml2 2.9.10+dfsg-6.7+deb11u8 DLA-4251-1
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS libxml2 2.9.14+dfsg-1.3ubuntu3.4 USN-7694-1
Ubuntu 22.04 LTS libxml2 2.9.13+dfsg-1ubuntu0.8 USN-7694-1
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 20.04 LTS libxml2 2.9.10+dfsg-5ubuntu0.20.04.10+esm1 USN-7694-1
Ubuntu Pro 18.04 LTS libxml2 2.9.4+dfsg1-6.1ubuntu1.9+esm4 USN-7694-1
Ubuntu Pro 16.04 LTS libxml2 2.9.3+dfsg1-1ubuntu0.7+esm9 USN-7694-1
Ubuntu Pro 14.04 LTS libxml2 2.9.1+dfsg1-3ubuntu4.13+esm8 USN-7694-1
ReleasePackageFixed inAdvisory
RHEL 10 libxml2 +3 2.12.5-7.el10_0 RHSA-2025:10630
RHEL 9 libxml2 +2 2.9.13-10.el9_6 RHSA-2025:10699
RHEL 8 libxml2 +2 2.9.7-21.el8_10.1 RHSA-2025:10698
Show 13 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 9.4 EUS libxml2 +2 2.9.13-10.el9_4 RHSA-2025:11580
RHEL 9.2 E4S libxml2 +2 2.9.13-3.el9_2.7 RHSA-2025:12199
RHEL 9.0 E4S libxml2 +2 2.9.13-1.el9_0.5 RHSA-2025:12099
RHEL 8.8 TUS libxml2 +2 2.9.7-16.el8_8.9 RHSA-2025:12239
RHEL 8.8 E4S libxml2 +2 2.9.7-16.el8_8.9 RHSA-2025:12239
RHEL 8.6 TUS libxml2 +2 2.9.7-13.el8_6.10 RHSA-2025:12098
RHEL 8.6 E4S libxml2 +2 2.9.7-13.el8_6.10 RHSA-2025:12098
RHEL 8.6 AUS libxml2 +2 2.9.7-13.el8_6.10 RHSA-2025:12098
RHEL 8.4 EUS Long Life libxml2 +2 2.9.7-9.el8_4.6 RHSA-2025:12241
RHEL 8.4 AUS libxml2 +2 2.9.7-9.el8_4.6 RHSA-2025:12241
RHEL 8.2 AUS libxml2 +2 2.9.7-9.el8_2.3 RHSA-2025:12237
RHEL 7 ELS libxml2 +3 2.9.1-6.el7_9.10 RHSA-2025:12240
Red Hat Hardened Images 1 libxml2 +4 2.15.2-0.3.hum1 RHSA-2026:7519

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 libxml2 +3 2.12.5-7.el10_0 ALSA-2025:10630
AlmaLinux 9 libxml2 +2 2.9.13-10.el9_6 ALSA-2025:10699
AlmaLinux 8 libxml2 +2 2.9.7-21.el8_10.1 ALSA-2025:10698

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 libxml2 2.12.5-7.el10_0 RLSA-2025:10630
Rocky Linux 9 libxml2 2.9.13-10.el9_6 RLSA-2025:10699
Rocky Linux 8 libxml2 2.9.7-21.el8_10.1 RLSA-2025:10698
ReleasePackageFixed inAdvisory
SLES 15 SP7 libxml2 +1 2.12.10-150700.4.3.1 SUSE-SU-2025:02260-1
SLES 15 SP6 libxml2 +1 2.10.3-150500.5.29.1 SUSE-SU-2025:02314-1
SLES 15 SP5 libxml2 +1 2.10.3-150500.5.29.1 SUSE-SU-2025:02314-1
SLES 15 SP4 libxml2 +1 2.9.14-150400.5.44.1 SUSE-SU-2025:02355-1
SLES 15 SP3 libxml2 +1 2.9.7-150000.3.82.1 SUSE-SU-2025:02275-1
Show 18 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP5 libxml2 +1 2.9.4-46.87.1 SUSE-SU-2025:02294-1
SLES 3 libxml2-python 2.10.3-150500.5.29.1 SUSE-SU-2025:02314-1, SUSE-SU-2025:02260-1
SLES for SAP 15 SP5 libxml2 +1 2.10.3-150500.5.29.1 SUSE-SU-2025:02314-1
SLES for SAP 15 SP4 libxml2 +1 2.9.14-150400.5.44.1 SUSE-SU-2025:02355-1
SLES for SAP 15 SP3 libxml2 +1 2.9.7-150000.3.82.1 SUSE-SU-2025:02275-1
SLE Micro 6.1 libxml2 2.11.6-slfo.1.1_6.1 SUSE-SU-2025:20607-1
SLE Micro 6.0 libxml2 2.11.6-10.1 SUSE-SU-2025:20564-1
SLE Micro 5.5 libxml2 +1 2.10.3-150500.5.29.1 SUSE-SU-2025:02314-1
SLE Micro 5.4 libxml2 +1 2.9.14-150400.5.44.1 SUSE-SU-2025:02355-1
SLE Micro 5.3 libxml2 +1 2.9.14-150400.5.44.1 SUSE-SU-2025:02355-1
SLE Micro 5.2 libxml2 +1 2.9.7-150000.3.82.1 SUSE-SU-2025:02275-1
SLE Micro 5.1 libxml2 2.9.7-150000.3.82.1 SUSE-SU-2025:02275-1
SLE HPC 15 SP5 libxml2 +1 2.10.3-150500.5.29.1 SUSE-SU-2025:02314-1
SLE HPC 15 SP4 libxml2 +1 2.9.14-150400.5.44.1 SUSE-SU-2025:02355-1
SLE HPC 15 SP3 libxml2 +1 2.9.7-150000.3.82.1 SUSE-SU-2025:02275-1
SUSE Manager Server 4.3 libxml2 +1 2.9.14-150400.5.44.1 SUSE-SU-2025:02355-1
SUSE Manager Proxy 4.3 libxml2 +1 2.9.14-150400.5.44.1 SUSE-SU-2025:02355-1
SUSE Enterprise Storage 7.1 libxml2 +1 2.9.7-150000.3.82.1 SUSE-SU-2025:02275-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed libxml2 2.13.8-2.1 openSUSE-SU-2025:15321-1
openSUSE Leap 15.6 libxml2 +1 2.10.3-150500.5.29.1 SUSE-SU-2025:02314-1
openSUSE Leap 15.6 python-libxml2-python 2.9.7-150000.3.82.1 SUSE-SU-2025:02275-1
ReleasePackageFixed inAdvisory
Alpine v3.24 libxml2 2.13.9-r0 —
Alpine v3.23 libxml2 2.13.9-r0 —
Alpine v3.22 libxml2 2.13.9-r0 —
Alpine v3.21 libxml2 2.13.9-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 libxml2 +3 2.10.4-1.amzn2023.0.12 ALAS2023-2025-1103
Amazon Linux 2 libxml2 +3 2.9.1-6.amzn2.5.19 ALAS2-2025-2938

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 libxml2 2.11.5-6 —
Azure Linux 2 (CBL-Mariner) libxml2 2.10.4-8 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 libxml2 +3 2.12.5-7.el10_0 ELSA-2025-10630
Oracle Linux 9 libxml2 +2 2.9.13-10.el9_6 ELSA-2025-10699
Oracle Linux 8 libxml2 +2 2.9.7-21.el8_10.1 ELSA-2025-10698
Oracle Linux 7 libxml2 +3 2.9.1-6.0.7.el7_9.6 ELSA-2025-12240

Advisories 50

References