Vulnerability from bitnami_vulndb
Published
2026-05-06 14:45
Modified
2026-05-06 15:10
Summary
Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2
Details

A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "java",
        "purl": "pkg:bitnami/java"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.0"
            },
            {
              "introduced": "1.9.0"
            },
            {
              "fixed": "8.0.481"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-6021"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:oracle:jdk:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "A flaw was found in libxml2\u0027s xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.",
  "id": "BIT-java-2025-6021",
  "modified": "2026-05-06T15:10:05.412Z",
  "published": "2026-05-06T14:45:43.734Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:10630"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:10698"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:10699"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:11580"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:11673"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12098"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12099"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12199"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12237"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12239"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12240"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:12241"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:13267"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:13289"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:13325"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:13335"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:13336"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:14059"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:14396"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:15308"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:15672"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:19020"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7519"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-6021"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2372406"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/926"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00014.html"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6021"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2"
}


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