CVE-2024-45491

Published Aug 30, 2024

Last updated 2 months ago

CVSS critical 9.8

Overview

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).
Source: cve@mitre.org
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

nvd@nist.gov: CWE-190
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-190

Hype score: Not currently trending

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"
      }
    ]
  }
]

References