Security update for libxml2

Announcement ID:	SUSE-SU-2025:02275-1
Release Date:	2025-07-10T14:34:25Z
Rating:	important
References:	bsc#1244554 bsc#1244557 bsc#1244590 bsc#1244700
Cross-References:	CVE-2025-49794 CVE-2025-49796 CVE-2025-6021 CVE-2025-6170
CVSS scores:	CVE-2025-49794 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVE-2025-49794 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVE-2025-49794 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVE-2025-49796 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVE-2025-49796 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVE-2025-6021 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-6021 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2025-6021 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2025-6170 ( SUSE ): 2.0 CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CVE-2025-6170 ( SUSE ): 4.5 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L CVE-2025-6170 ( NVD ): 2.5 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected Products:	openSUSE Leap 15.6 SUSE Enterprise Storage 7.1 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 SUSE Linux Enterprise Micro 5.1 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Micro for Rancher 5.2 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP3

An update that solves four vulnerabilities can now be installed.

Description:

This update for libxml2 fixes the following issues:

• CVE-2025-49794: Fixed a heap use after free which could lead to denial of service. (bsc#1244554)
• CVE-2025-49796: Fixed type confusion which could lead to denial of service. (bsc#1244557)
• CVE-2025-6170: Fixed a stack buffer overflow which could lead to a crash. (bsc#1244700)
• CVE-2025-6021: Fixed an integer overflow in xmlBuildQName() which could lead to stack buffer overflow. (bsc#1244590)

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• openSUSE Leap 15.6
  zypper in -t patch openSUSE-SLE-15.6-2025-2275=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-2275=1
• SUSE Linux Enterprise Server 15 SP3 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-2275=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP3
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP3-2025-2275=1
• SUSE Enterprise Storage 7.1
  zypper in -t patch SUSE-Storage-7.1-2025-2275=1
• SUSE Linux Enterprise Micro 5.1
  zypper in -t patch SUSE-SUSE-MicroOS-5.1-2025-2275=1
• SUSE Linux Enterprise Micro 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2025-2275=1
• SUSE Linux Enterprise Micro for Rancher 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2025-2275=1

Package List:

• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
  • python3-libxml2-python-debuginfo-2.9.7-150000.3.82.1
  • python-libxml2-python-debugsource-2.9.7-150000.3.82.1
  • python3-libxml2-python-2.9.7-150000.3.82.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (aarch64 x86_64)
  • libxml2-devel-2.9.7-150000.3.82.1
  • python3-libxml2-python-2.9.7-150000.3.82.1
  • libxml2-tools-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-debuginfo-2.9.7-150000.3.82.1
  • python-libxml2-python-debugsource-2.9.7-150000.3.82.1
  • libxml2-tools-2.9.7-150000.3.82.1
  • libxml2-debugsource-2.9.7-150000.3.82.1
  • libxml2-2-2.9.7-150000.3.82.1
  • python3-libxml2-python-debuginfo-2.9.7-150000.3.82.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (x86_64)
  • libxml2-2-32bit-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-32bit-2.9.7-150000.3.82.1
• SUSE Linux Enterprise Server 15 SP3 LTSS (aarch64 ppc64le s390x x86_64)
  • libxml2-devel-2.9.7-150000.3.82.1
  • python3-libxml2-python-2.9.7-150000.3.82.1
  • libxml2-tools-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-debuginfo-2.9.7-150000.3.82.1
  • python-libxml2-python-debugsource-2.9.7-150000.3.82.1
  • libxml2-tools-2.9.7-150000.3.82.1
  • libxml2-debugsource-2.9.7-150000.3.82.1
  • libxml2-2-2.9.7-150000.3.82.1
  • python3-libxml2-python-debuginfo-2.9.7-150000.3.82.1
• SUSE Linux Enterprise Server 15 SP3 LTSS (x86_64)
  • libxml2-2-32bit-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-32bit-2.9.7-150000.3.82.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP3 (ppc64le x86_64)
  • libxml2-devel-2.9.7-150000.3.82.1
  • python3-libxml2-python-2.9.7-150000.3.82.1
  • libxml2-tools-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-debuginfo-2.9.7-150000.3.82.1
  • python-libxml2-python-debugsource-2.9.7-150000.3.82.1
  • libxml2-tools-2.9.7-150000.3.82.1
  • libxml2-debugsource-2.9.7-150000.3.82.1
  • libxml2-2-2.9.7-150000.3.82.1
  • python3-libxml2-python-debuginfo-2.9.7-150000.3.82.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP3 (x86_64)
  • libxml2-2-32bit-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-32bit-2.9.7-150000.3.82.1
• SUSE Enterprise Storage 7.1 (aarch64 x86_64)
  • libxml2-devel-2.9.7-150000.3.82.1
  • python3-libxml2-python-2.9.7-150000.3.82.1
  • libxml2-tools-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-debuginfo-2.9.7-150000.3.82.1
  • python-libxml2-python-debugsource-2.9.7-150000.3.82.1
  • libxml2-tools-2.9.7-150000.3.82.1
  • libxml2-debugsource-2.9.7-150000.3.82.1
  • libxml2-2-2.9.7-150000.3.82.1
  • python3-libxml2-python-debuginfo-2.9.7-150000.3.82.1
• SUSE Enterprise Storage 7.1 (x86_64)
  • libxml2-2-32bit-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-32bit-2.9.7-150000.3.82.1
• SUSE Linux Enterprise Micro 5.1 (aarch64 s390x x86_64)
  • libxml2-tools-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-debuginfo-2.9.7-150000.3.82.1
  • libxml2-tools-2.9.7-150000.3.82.1
  • libxml2-debugsource-2.9.7-150000.3.82.1
  • libxml2-2-2.9.7-150000.3.82.1
• SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
  • python3-libxml2-python-2.9.7-150000.3.82.1
  • libxml2-tools-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-debuginfo-2.9.7-150000.3.82.1
  • python-libxml2-python-debugsource-2.9.7-150000.3.82.1
  • libxml2-tools-2.9.7-150000.3.82.1
  • libxml2-debugsource-2.9.7-150000.3.82.1
  • libxml2-2-2.9.7-150000.3.82.1
  • python3-libxml2-python-debuginfo-2.9.7-150000.3.82.1
• SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
  • python3-libxml2-python-2.9.7-150000.3.82.1
  • libxml2-tools-debuginfo-2.9.7-150000.3.82.1
  • libxml2-2-debuginfo-2.9.7-150000.3.82.1
  • python-libxml2-python-debugsource-2.9.7-150000.3.82.1
  • libxml2-tools-2.9.7-150000.3.82.1
  • libxml2-debugsource-2.9.7-150000.3.82.1
  • libxml2-2-2.9.7-150000.3.82.1
  • python3-libxml2-python-debuginfo-2.9.7-150000.3.82.1

References:

• https://www.suse.com/security/cve/CVE-2025-49794.html
• https://www.suse.com/security/cve/CVE-2025-49796.html
• https://www.suse.com/security/cve/CVE-2025-6021.html
• https://www.suse.com/security/cve/CVE-2025-6170.html
• https://bugzilla.suse.com/show_bug.cgi?id=1244554
• https://bugzilla.suse.com/show_bug.cgi?id=1244557
• https://bugzilla.suse.com/show_bug.cgi?id=1244590
• https://bugzilla.suse.com/show_bug.cgi?id=1244700