Vulnerability-Lookup

OESA-2022-1582 (CVE-2019-19956)

Vulnerability from osv_openeuler – Published: 2022-03-19 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

libxml2 security update

Details

This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The output can be a simple SAX stream or and in-memory DOM like representations. In this case one can use the built-in XPath and XPointer implementation to select sub nodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP modules and combined to an URI library.

Security Fix(es):

xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs.(CVE-2019-19956)

valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes.(CVE-2022-23308)

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2019-19956	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2022-23308	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "libxml2-2.9.10-25.oe1.aarch64.rpm",
          "python2-libxml2-2.9.10-25.oe1.aarch64.rpm",
          "libxml2-debugsource-2.9.10-25.oe1.aarch64.rpm",
          "libxml2-debuginfo-2.9.10-25.oe1.aarch64.rpm",
          "libxml2-devel-2.9.10-25.oe1.aarch64.rpm",
          "python3-libxml2-2.9.10-25.oe1.aarch64.rpm"
        ],
        "noarch": [
          "libxml2-help-2.9.10-25.oe1.noarch.rpm"
        ],
        "src": [
          "libxml2-2.9.10-25.oe1.src.rpm"
        ],
        "x86_64": [
          "libxml2-devel-2.9.10-25.oe1.x86_64.rpm",
          "libxml2-debuginfo-2.9.10-25.oe1.x86_64.rpm",
          "python2-libxml2-2.9.10-25.oe1.x86_64.rpm",
          "libxml2-2.9.10-25.oe1.x86_64.rpm",
          "libxml2-debugsource-2.9.10-25.oe1.x86_64.rpm",
          "python3-libxml2-2.9.10-25.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "libxml2",
        "purl": "pkg:rpm/openEuler/libxml2\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.10-25.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "python2-libxml2-2.9.10-25.oe1.aarch64.rpm",
          "libxml2-debugsource-2.9.10-25.oe1.aarch64.rpm",
          "libxml2-2.9.10-25.oe1.aarch64.rpm",
          "libxml2-debuginfo-2.9.10-25.oe1.aarch64.rpm",
          "libxml2-devel-2.9.10-25.oe1.aarch64.rpm",
          "python3-libxml2-2.9.10-25.oe1.aarch64.rpm"
        ],
        "noarch": [
          "libxml2-help-2.9.10-25.oe1.noarch.rpm"
        ],
        "src": [
          "libxml2-2.9.10-25.oe1.src.rpm"
        ],
        "x86_64": [
          "python2-libxml2-2.9.10-25.oe1.x86_64.rpm",
          "python3-libxml2-2.9.10-25.oe1.x86_64.rpm",
          "libxml2-devel-2.9.10-25.oe1.x86_64.rpm",
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          "libxml2-debugsource-2.9.10-25.oe1.x86_64.rpm",
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        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP2",
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        "purl": "pkg:rpm/openEuler/libxml2\u0026distro=openEuler-20.03-LTS-SP2"
      },
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            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.10-25.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
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          "libxml2-debuginfo-2.9.10-27.oe1.aarch64.rpm",
          "libxml2-devel-2.9.10-27.oe1.aarch64.rpm",
          "libxml2-2.9.10-27.oe1.aarch64.rpm",
          "libxml2-debugsource-2.9.10-27.oe1.aarch64.rpm",
          "python2-libxml2-2.9.10-27.oe1.aarch64.rpm"
        ],
        "noarch": [
          "libxml2-help-2.9.10-27.oe1.noarch.rpm"
        ],
        "src": [
          "libxml2-2.9.10-27.oe1.src.rpm"
        ],
        "x86_64": [
          "libxml2-debuginfo-2.9.10-27.oe1.x86_64.rpm",
          "libxml2-devel-2.9.10-27.oe1.x86_64.rpm",
          "libxml2-debugsource-2.9.10-27.oe1.x86_64.rpm",
          "python3-libxml2-2.9.10-27.oe1.x86_64.rpm",
          "python2-libxml2-2.9.10-27.oe1.x86_64.rpm",
          "libxml2-2.9.10-27.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "libxml2",
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      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.10-27.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The output can be a simple SAX stream or and in-memory DOM like representations. In this case one can use the built-in XPath and XPointer implementation to select sub nodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP modules and combined to an URI library.\r\n\r\nSecurity Fix(es):\r\n\r\nxmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc-\u0026gt;oldNs.(CVE-2019-19956)\r\n\r\nvalid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes.(CVE-2022-23308)",
  "id": "OESA-2022-1582",
  "modified": "2026-08-06T11:04:51Z",
  "published": "2022-03-19T11:04:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1582"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19956"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23308"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "libxml2 security update",
  "upstream": [
    "CVE-2019-19956",
    "CVE-2022-23308"
  ]
}

CVE-2019-19956 (GCVE-0-2019-19956)

Vulnerability from cvelistv5 – Published: 2019-12-24 15:12 – Updated: 2025-12-03 18:29

Summary

xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-03 18:29 UTC

CWE

n/a
CWE-772 - Missing Release of Resource after Effective Lifetime

Assigner

mitre mitre root

References

12 references

URL	Tags
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4274-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://www.oracle.com/security-alerts/cpujul2020.html	x_refsource_MISC
https://gitlab.gnome.org/GNOME/libxml2/commit/5a0…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2020011…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

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              "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html"
            },
            {
              "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdf",
              "refsource": "CONFIRM",
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-292794.pdf"
            },
            {
              "name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08",
              "refsource": "CONFIRM",
              "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-08"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-19956",
    "datePublished": "2019-12-24T15:12:57.000Z",
    "dateReserved": "2019-12-24T00:00:00.000Z",
    "dateUpdated": "2025-12-03T18:29:29.480Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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CVE-2022-23308 (GCVE-0-2022-23308)

Vulnerability from cvelistv5 – Published: 2022-02-26 00:00 – Updated: 2025-05-05 16:26

Summary

valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:27 UTC

CWE

n/a
CWE-416 - Use After Free

Assigner

mitre mitre root

References

19 references

URL	Tags
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
http://seclists.org/fulldisclosure/2022/May/33	mailing-list
http://seclists.org/fulldisclosure/2022/May/37	mailing-list
http://seclists.org/fulldisclosure/2022/May/35	mailing-list
http://seclists.org/fulldisclosure/2022/May/38	mailing-list
http://seclists.org/fulldisclosure/2022/May/36	mailing-list
http://seclists.org/fulldisclosure/2022/May/34	mailing-list
https://www.oracle.com/security-alerts/cpujul2022.html
https://support.apple.com/kb/HT213257
https://support.apple.com/kb/HT213256
https://support.apple.com/kb/HT213255
https://gitlab.gnome.org/GNOME/libxml2/-/blob/v2.…
https://github.com/GNOME/libxml2/commit/652dd12a8…
https://security.netapp.com/advisory/ntap-2022033…
https://support.apple.com/kb/HT213253
https://support.apple.com/kb/HT213258
https://support.apple.com/kb/HT213254
https://security.gentoo.org/glsa/202210-03	vendor-advisory

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2022-1582 (CVE-2019-19956)

CVE-2019-19956 (GCVE-0-2019-19956)

CVE-2022-23308 (GCVE-0-2022-23308)

Tags

Sightings

Nomenclature

Related by attack behaviour