Description
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 (6)
Core 6
Core References
Vendor Advisory
https://security.netapp.com/advisory/ntap-20241018-0003/
Issue Tracking
https://github.com/libexpat/libexpat/issues/888
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-613116.html
Scores
CVSS v3
9.8
EPSS
0.0113
EPSS Percentile
62.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-190
Status
published
Products (1)
libexpat_project/libexpat
< 2.6.3
Published
Aug 30, 2024
Tracked Since
Feb 18, 2026