cnvd - cnvd-2022-04541

cnvd-2022-04541

Vulnerability from cnvd

Title: Expat defineAttribute函数缓冲区溢出漏洞

Description:

Expat是一款使用C语言编写的快速流式XML解析器。

Expat在2.4.3之前的版本中存在缓冲区溢出漏洞，该漏洞源于 xmlparse.c 中的 defineAttribute存在处理不受信任的输入时出现边界错误。远程攻击者可利用该漏洞在系统上执行任意代码。

Severity: 高

Formal description:

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://github.com/libexpat/libexpat

Reference: https://github.com/libexpat/libexpat/pull/539

Impacted products

Name
James Clark Expat <2.4.3

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-22824",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-22824"
    }
  },
  "description": "Expat\u662f\u4e00\u6b3e\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u5feb\u901f\u6d41\u5f0fXML\u89e3\u6790\u5668\u3002\n\nExpat\u57282.4.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e xmlparse.c \u4e2d\u7684 defineAttribute\u5b58\u5728\u5904\u7406\u4e0d\u53d7\u4fe1\u4efb\u7684\u8f93\u5165\u65f6\u51fa\u73b0\u8fb9\u754c\u9519\u8bef\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://github.com/libexpat/libexpat",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-04541",
  "openTime": "2022-01-18",
  "products": {
    "product": "James Clark Expat \u003c2.4.3"
  },
  "referenceLink": "https://github.com/libexpat/libexpat/pull/539",
  "serverity": "\u9ad8",
  "submitTime": "2022-01-14",
  "title": "Expat defineAttribute\u51fd\u6570\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2022-22824 (GCVE-0-2022-22824)

Vulnerability from cvelistv5

Published

2022-01-08 02:56

Modified

2025-05-05 16:29

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

Summary

defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

References

▼	URL	Tags
	https://github.com/libexpat/libexpat/pull/539	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2022/01/17/3	mailing-list, x_refsource_MLIST
	https://www.tenable.com/security/tns-2022-05	x_refsource_CONFIRM
	https://www.debian.org/security/2022/dsa-5073	vendor-advisory, x_refsource_DEBIAN
	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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