CVE-2023-28484

libxml2: NULL dereference in xmlSchemaFixupComplexType

Published Apr 24, 2023 CVSS 3.1 · 6.5 Medium EPSS 1.2% KEV · Not listed
Description
In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3405-1 libxml2 security update
Debian DSA Debian DSA DSA-5391-1 libxml2 security update
EUVD EUVD EUVD-2023-32154 In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.
Ubuntu USN Ubuntu USN USN-6028-1 libxml2 vulnerabilities
Ubuntu USN Ubuntu USN USN-6028-2 libxml2 vulnerabilities
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 14, 2026, 10:54 PM
Reserved
Mar 16, 2023, 12:00 AM
Status
Modified
Published
Apr 24, 2023, 9:15 PM
Modified
Oct 14, 2026, 11:17 PM
Severity
Moderate
Public date
Apr 11, 2023, 12:00 AM