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

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-25313",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-25313"
    }
  },
  "description": "Expat\u662f\u4e00\u6b3e\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u5feb\u901f\u6d41\u5f0fXML\u89e3\u6790\u5668\u3002\n\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",
  "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"
}


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