JLSEC-2025-63 Critical 9.8
An issue was discovered in libexpat before 2.6.3
An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).
References
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
- https://github.com/libexpat/libexpat/issues/888
- https://github.com/libexpat/libexpat/pull/891
- https://lists.debian.org/debian-lts-announce/2024/09/msg00036.html
- https://security.netapp.com/advisory/ntap-20241018-0003/