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

Configurations

Configuration 1 (hide)

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

History

04 Sep 2024, 14:28

Type	Values Removed	Values Added
First Time		Libexpat Project libexpat Libexpat Project
CPE		cpe:2.3:a:libexpat_project:libexpat::::::::
References	~~() https://github.com/libexpat/libexpat/issues/888 -~~	() https://github.com/libexpat/libexpat/issues/888 - Issue Tracking
References	~~() https://github.com/libexpat/libexpat/pull/891 -~~	() https://github.com/libexpat/libexpat/pull/891 - Patch
CVSS	v2 : ~~unknown~~ v3 : ~~7.3~~	v2 : unknown v3 : 9.8

30 Aug 2024, 14:35

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.3
Summary		(es) Se descubrió un problema en libexpat anterior a 2.6.3. dtdCopy en xmlparse.c puede tener un desbordamiento de entero para nDefaultAtts en plataformas de 32 bits (donde UINT_MAX es igual a SIZE_MAX).
CWE		CWE-190

30 Aug 2024, 03:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-08-30 03:15

Updated : 2024-09-04 14:28

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

{"id": "CVE-2024-45491", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 3.9}]}, "published": "2024-08-30T03:15:03.850", "references": [{"url": "https://github.com/libexpat/libexpat/issues/888", "tags": ["Issue Tracking"], "source": "cve@mitre.org"}, {"url": "https://github.com/libexpat/libexpat/pull/891", "tags": ["Patch"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-190"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "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)."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en libexpat anterior a 2.6.3. dtdCopy en xmlparse.c puede tener un desbordamiento de entero para nDefaultAtts en plataformas de 32 bits (donde UINT_MAX es igual a SIZE_MAX)."}], "lastModified": "2024-09-04T14:28:33.953", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FDDF6E7A-AF1C-4370-B0B0-29A35C454FFB", "versionEndExcluding": "2.6.3"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}