CVE-2024-56171: h300s Use-After-Free (CVSS 7.8)

Description

libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Weakness Type (CWE)

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
xmlsoft	libxml2	< 2.12.10
xmlsoft	libxml2	2.13.0 — 2.13.6
netapp	hci_compute_node	All
netapp	hci_compute_node	All
netapp	h410c_firmware	All
netapp	h410c	All
netapp	h300s_firmware	All
netapp	h300s	All
netapp	h500s_firmware	All
netapp	h500s	All
netapp	h700s_firmware	All
netapp	h700s	All
netapp	h410s_firmware	All
netapp	h410s	All
netapp	active_iq_unified_manager	All
netapp	manageability_software_development_kit	All
netapp	ontap	All
netapp	solidfire_\&_hci_management_node	All

References

Other References

https://gitlab.gnome.org/GNOME/libxml2/-/issues/828 http://seclists.org/fulldisclosure/2025/Apr/10 http://seclists.org/fulldisclosure/2025/Apr/11 http://seclists.org/fulldisclosure/2025/Apr/12 http://seclists.org/fulldisclosure/2025/Apr/13 http://seclists.org/fulldisclosure/2025/Apr/4 http://seclists.org/fulldisclosure/2025/Apr/5 http://seclists.org/fulldisclosure/2025/Apr/8 http://seclists.org/fulldisclosure/2025/Apr/9 https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html

Frequently Asked Questions

What is CVE-2024-56171? +

libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-56171? +

CVE-2024-56171 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-56171? +

CVE-2024-56171 affects products from netapp, xmlsoft, specifically: active_iq_unified_manager, h300s, h300s_firmware, h410c, h410c_firmware, h410s, h410s_firmware, h500s, h500s_firmware, h700s, h700s_firmware, hci_compute_node, libxml2, manageability_software_development_kit, ontap, solidfire_\&_hci_management_node. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-56171? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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