CVE-2024-45491

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).

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/libexpat/libexpat/issues/888	Issue Tracking
https://github.com/libexpat/libexpat/pull/891	Patch
https://lists.debian.org/debian-lts-announce/2024/09/msg00036.html
https://security.netapp.com/advisory/ntap-20241018-0003/

Configurations

Configuration 1 (hide)

cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*

History

04 Nov 2025, 17:16

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2024/09/msg00036.html -

Information

Published : 2024-08-30 03:15

Updated : 2025-11-04 17:16

NVD link : CVE-2024-45491

Mitre link : CVE-2024-45491

CVE.ORG link : CVE-2024-45491

JSON object : View

Products Affected

libexpat_project

libexpat

CWE

CWE-190

Integer Overflow or Wraparound

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