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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/491 Exploit, Issue Tracking, Patch, Vendor Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/491 Exploit, Issue Tracking, Patch, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · xmlsoft, debianNVD modified 2026-10-14 23:17
Affected (CPE criteria) 2
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
References 15
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/491 Exploit, Issue Tracking, Patch, Vendor Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4 Release Notes
- https://lists.debian.org/debian-lts-announce/2023/04/msg00031.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230601-0006/
- https://security.netapp.com/advisory/ntap-20240201-0005/
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/491 Exploit, Issue Tracking, Patch, Vendor Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4 Release Notes
- https://lists.debian.org/debian-lts-announce/2023/04/msg00031.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230601-0006/
- https://security.netapp.com/advisory/ntap-20240201-0005/
- https://cert-portal.siemens.com/productcert/html/ssa-341067.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-556635.html
- https://cert-portal.siemens.com/productcert/html/ssa-625862.html
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html