Vulnerability-Lookup

alsa-2023:0103

Vulnerability from osv_almalinux

Published

2023-01-12 00:00

Modified

2023-03-08 11:40

Summary

Moderate: expat security update

Details

Expat is a C library for parsing XML documents.

Security Fix(es):

expat: use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate (CVE-2022-43680)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2023:0103	ADVISORY
	https://access.redhat.com/security/cve/CVE-2022-43680	REPORT
	https://bugzilla.redhat.com/2140059	REPORT
	https://errata.almalinux.org/8/ALSA-2023-0103.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "expat"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.5-10.el8_7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "expat-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.5-10.el8_7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Expat is a C library for parsing XML documents.\n\nSecurity Fix(es):\n\n* expat: use-after free caused by overeager destruction of a shared DTD in\nXML_ExternalEntityParserCreate (CVE-2022-43680)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE page(s)\nlisted in the References section.",
  "id": "ALSA-2023:0103",
  "modified": "2023-03-08T11:40:15Z",
  "published": "2023-01-12T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2023:0103"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2022-43680"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2140059"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2023-0103.html"
    }
  ],
  "related": [
    "CVE-2022-43680"
  ],
  "summary": "Moderate: expat security update"
}

CVE-2022-43680 (GCVE-0-2022-43680)

Vulnerability from cvelistv5 – Published: 2022-10-24 00:00 – Updated: 2025-05-30 19:20

Summary

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

Severity ?

7.5 (High)


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

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/libexpat/libexpat/pull/650
	https://github.com/libexpat/libexpat/issues/649
	https://github.com/libexpat/libexpat/pull/616
	https://lists.debian.org/debian-lts-announce/2022…	mailing-list
	https://www.debian.org/security/2022/dsa-5266	vendor-advisory
	https://security.gentoo.org/glsa/202210-38	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://security.netapp.com/advisory/ntap-2022111…
	http://www.openwall.com/lists/oss-security/2023/12/28/5	mailing-list
	http://www.openwall.com/lists/oss-security/2024/01/03/5	mailing-list

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

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.

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