cnvd - cnvd-2022-18354

cnvd-2022-18354

Vulnerability from cnvd

Title: Expat存在未明漏洞（CNVD-2022-18354）

Description:

Expat是一款使用C语言编写的快速流式XML解析器。

Expat 2.4.5之前存在安全漏洞，攻击者可利用该漏洞通过DTD元素中的较大嵌套深度触发build_model中的堆栈耗尽。

Severity: 中

Patch Name: Expat存在未明漏洞（CNVD-2022-18354）的补丁

Patch Description:

Expat是一款使用C语言编写的快速流式XML解析器。

Expat 2.4.5之前存在安全漏洞，攻击者可利用该漏洞通过DTD元素中的较大嵌套深度触发build_model中的堆栈耗尽。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/libexpat/libexpat/pull/558

Reference: https://github.com/libexpat/libexpat/pull/558

Impacted products

Name
Expat Expat <2.4.5

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-25313",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-25313"
    }
  },
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  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/libexpat/libexpat/pull/558",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-18354",
  "openTime": "2022-03-11",
  "patchDescription": "Expat\u662f\u4e00\u6b3e\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u5feb\u901f\u6d41\u5f0fXML\u89e3\u6790\u5668\u3002\r\n\r\nExpat 2.4.5\u4e4b\u524d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7DTD\u5143\u7d20\u4e2d\u7684\u8f83\u5927\u5d4c\u5957\u6df1\u5ea6\u89e6\u53d1build_model\u4e2d\u7684\u5806\u6808\u8017\u5c3d\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Expat\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2022-18354\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Expat Expat \u003c2.4.5"
  },
  "referenceLink": "https://github.com/libexpat/libexpat/pull/558",
  "serverity": "\u4e2d",
  "submitTime": "2022-02-22",
  "title": "Expat\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2022-18354\uff09"
}

CVE-2022-25313 (GCVE-0-2022-25313)

Vulnerability from cvelistv5

Published

2022-02-18 04:23

Modified

2025-05-30 19:43

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE

Summary

In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

References

▼	URL	Tags
	https://github.com/libexpat/libexpat/pull/558	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2022/02/19/1	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2022/dsa-5085	vendor-advisory, x_refsource_DEBIAN
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/	vendor-advisory, x_refsource_FEDORA
	https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html	mailing-list, x_refsource_MLIST
	https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20220303-0008/	x_refsource_CONFIRM
	https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf	x_refsource_CONFIRM
	https://security.gentoo.org/glsa/202209-24	vendor-advisory, x_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

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 seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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