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 15.4
zypper in -t patch SUSE-2025-2355=1
* SUSE Linux Enterprise Micro for Rancher 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2025-2355=1
* SUSE Linux Enterprise Micro 5.3
zypper in -t patch SUSE-SLE-Micro-5.3-2025-2355=1
* SUSE Linux Enterprise Micro for Rancher 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2025-2355=1
* SUSE Linux Enterprise Micro 5.4
zypper in -t patch SUSE-SLE-Micro-5.4-2025-2355=1
* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-2355=1
* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-2355=1
* SUSE Linux Enterprise Server 15 SP4 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-2355=1
* SUSE Linux Enterprise Server for...
Read the Full Advisory* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)
* python3-libxml2-debuginfo-2.9.14-150400.5.44.1
* libxml2-python-debugsource-2.9.14-150400.5.44.1
* python311-libxml2-debuginfo-2.9.14-150400.5.44.1
* libxml2-devel-2.9.14-150400.5.44.1
* libxml2-tools-2.9.14-150400.5.44.1
* python311-libxml2-2.9.14-150400.5.44.1
* libxml2-debugsource-2.9.14-150400.5.44.1
* python3-libxml2-2.9.14-150400.5.44.1
* libxml2-tools-debuginfo-2.9.14-150400.5.44.1
* libxml2-2-2.9.14-150400.5.44.1
* libxml2-2-debuginfo-2.9.14-150400.5.44.1
* openSUSE Leap 15.4 (x86_64)
* libxml2-2-32bit-2.9.14-150400.5.44.1
* libxml2-2-32bit-debuginfo-2.9.14-150400.5.44.1
* libxml2-devel-32bit-2.9.14-150400.5.44.1
* openSUSE Leap 15.4 (noarch)
* libxml2-doc-2.9.14-150400.5.44.1
* openSUSE Leap 15.4 (aarch64_ilp32)
* libxml2-devel-64bit-2.9.14-150400.5.44.1
* libxml2-2-64bit-debuginfo-2.9.14-150400.5.44.1
* libxml2-2-64bit-2.9.14-150400.5.44.1
* SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
*...
Read the Full Advisory* bsc#1244554
* bsc#1244557
* bsc#1244590
* bsc#1244700
## 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
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