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libxml2: Fix of 2 CVEs

Type: advisorySources: OSV

- CVE-2025-7425: fix heap-use-after-free in xmlFreeID caused by 'atype' corruption - CVE-2025-6021: fix integer overflows in buffer size calculations

Products
libxml2, libxml2-devel, libxml2-python, libxml2-static
Affected versions
Not specified
Fixed versions
2.9.1-6.0.3.el7_9.6.tuxcare.els7
CVEs
CVE-2025-6021, CVE-2025-7425
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 13:55 UTC · Revision 1

Source evidence

libxml2: Fix of 2 CVEs

core-osv · Original source

Published 9 Sept 2025, 10:57 UTC

- CVE-2025-7425: fix heap-use-after-free in xmlFreeID caused by 'atype' corruption - CVE-2025-6021: fix integer overflows in buffer size calculations

osv:CLSA-2025-1757415450

libxml2

Fixed versions: 2.9.1-6.0.3.el7_9.6.tuxcare.els7

libxml2-devel

Fixed versions: 2.9.1-6.0.3.el7_9.6.tuxcare.els7

libxml2-python

Fixed versions: 2.9.1-6.0.3.el7_9.6.tuxcare.els7

libxml2-static

Fixed versions: 2.9.1-6.0.3.el7_9.6.tuxcare.els7

Complete source record
{
  "id": "ed7e21c3caf913934b566647b5759019b5ba2767b6c8bac2dad29c0c998469c5",
  "url": "https://osv.dev/vulnerability/CLSA-2025-1757415450",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "libxml2: Fix of 2 CVEs",
    "summary": "- CVE-2025-7425: fix heap-use-after-free in xmlFreeID caused by 'atype' corruption - CVE-2025-6021: fix integer overflows in buffer size calculations",
    "evidence": "osv:CLSA-2025-1757415450",
    "products": [
      {
        "name": {
          "value": "libxml2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.1-6.0.3.el7_9.6.tuxcare.els7",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libxml2-devel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.1-6.0.3.el7_9.6.tuxcare.els7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libxml2-python",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.1-6.0.3.el7_9.6.tuxcare.els7",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libxml2-static",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.9.1-6.0.3.el7_9.6.tuxcare.els7",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2025-1757415450",
      "aliases": [
        "CLSA-2025-1757415450"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.1-6.0.3.el7_9.6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "libxml2",
            "purl": "pkg:rpm/tuxcare/libxml2?distro=oraclelinux-7",
            "ecosystem": "TuxCare:OracleLinux:7"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2025-1757415450.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.1-6.0.3.el7_9.6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "libxml2-devel",
            "purl": "pkg:rpm/tuxcare/libxml2-devel?distro=oraclelinux-7",
            "ecosystem": "TuxCare:OracleLinux:7"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2025-1757415450.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.1-6.0.3.el7_9.6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "libxml2-python",
            "purl": "pkg:rpm/tuxcare/libxml2-python?distro=oraclelinux-7",
            "ecosystem": "TuxCare:OracleLinux:7"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2025-1757415450.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.9.1-6.0.3.el7_9.6.tuxcare.els7"
                }
              ]
            }
          ],
          "package": {
            "name": "libxml2-static",
            "purl": "pkg:rpm/tuxcare/libxml2-static?distro=oraclelinux-7",
            "ecosystem": "TuxCare:OracleLinux:7"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2025-1757415450.json"
          }
        }
      ],
      "modified": "2026-10-21T10:48:02.094421011Z",
      "provider": "osv",
      "upstream": [
        "CVE-2025-6021",
        "CVE-2025-7425"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2025-1757415450.html"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2025-6021",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2025-7425",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 392510,
  "published_at": "2025-09-09T10:57:34+00:00"
}