cnvd - cnvd-2016-04187

cnvd-2016-04187

Vulnerability from cnvd

Title: Expat加密机制破坏漏洞

Description:

Expat是一个基于C语言的XML解析器库，它采用了一个面向流的解析器。

当程序在调用XML_SetHashSalt的解析器中使用或传递一个0种子时Expat中存在安全漏洞，允许远程攻击者可利用该漏洞破坏加密保护机制。

Severity: 中

Patch Name: Expat加密机制破坏漏洞的补丁

Patch Description:

Expat是一个基于C语言的XML解析器库，它采用了一个面向流的解析器。

当程序在调用XML_SetHashSalt的解析器中使用或传递一个0种子时Expat中存在安全漏洞，允许远程攻击者可利用该漏洞破坏加密保护机制。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:

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://sourceforge.net/p/expat/code_git/ci/07cc2fcacf81b32b2e06aa918df51756525240c0/

Reference: https://sourceforge.net/p/expat/code_git/ci/07cc2fcacf81b32b2e06aa918df51756525240c0/

Impacted products

Name
Expat Expat

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2012-6702"
    }
  },
  "description": "Expat\u662f\u4e00\u4e2a\u57fa\u4e8eC\u8bed\u8a00\u7684XML\u89e3\u6790\u5668\u5e93\uff0c\u5b83\u91c7\u7528\u4e86\u4e00\u4e2a\u9762\u5411\u6d41\u7684\u89e3\u6790\u5668\u3002\r\n\r\n\u5f53\u7a0b\u5e8f\u5728\u8c03\u7528XML_SetHashSalt\u7684\u89e3\u6790\u5668\u4e2d\u4f7f\u7528\u6216\u4f20\u9012\u4e00\u4e2a0\u79cd\u5b50\u65f6Expat\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7834\u574f\u52a0\u5bc6\u4fdd\u62a4\u673a\u5236\u3002",
  "discovererName": "fdrake, hartwork, kwaclaw",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://sourceforge.net/p/expat/code_git/ci/07cc2fcacf81b32b2e06aa918df51756525240c0/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-04187",
  "openTime": "2016-06-22",
  "patchDescription": "Expat\u662f\u4e00\u4e2a\u57fa\u4e8eC\u8bed\u8a00\u7684XML\u89e3\u6790\u5668\u5e93\uff0c\u5b83\u91c7\u7528\u4e86\u4e00\u4e2a\u9762\u5411\u6d41\u7684\u89e3\u6790\u5668\u3002\r\n\r\n\u5f53\u7a0b\u5e8f\u5728\u8c03\u7528XML_SetHashSalt\u7684\u89e3\u6790\u5668\u4e2d\u4f7f\u7528\u6216\u4f20\u9012\u4e00\u4e2a0\u79cd\u5b50\u65f6Expat\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7834\u574f\u52a0\u5bc6\u4fdd\u62a4\u673a\u5236\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\u52a0\u5bc6\u673a\u5236\u7834\u574f\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Expat Expat"
  },
  "referenceLink": "https://sourceforge.net/p/expat/code_git/ci/07cc2fcacf81b32b2e06aa918df51756525240c0/",
  "serverity": "\u4e2d",
  "submitTime": "2016-06-19",
  "title": "Expat\u52a0\u5bc6\u673a\u5236\u7834\u574f\u6f0f\u6d1e"
}

CVE-2012-6702 (GCVE-0-2012-6702)

Vulnerability from cvelistv5

Published

2016-06-16 18:00

Modified

2024-08-06 21:36

Severity ?

CWE

Summary

Expat, when used in a parser that has not called XML_SetHashSalt or passed it a seed of 0, makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via vectors involving use of the srand function.

References

▼	URL	Tags
	https://www.tenable.com/security/tns-2016-20	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/91483	vdb-entry, x_refsource_BID
	http://www.debian.org/security/2016/dsa-3597	vendor-advisory, x_refsource_DEBIAN
	http://www.openwall.com/lists/oss-security/2016/06/04/1	mailing-list, x_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2016/06/03/8	mailing-list, x_refsource_MLIST
	https://security.gentoo.org/glsa/201701-21	vendor-advisory, x_refsource_GENTOO
	https://source.android.com/security/bulletin/2016-11-01.html	x_refsource_CONFIRM
	http://www.ubuntu.com/usn/USN-3010-1	vendor-advisory, x_refsource_UBUNTU

Impacted products

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

Show details on NVD website

JSON

To clipboard

{
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            "url": "http://www.debian.org/security/2016/dsa-3597"
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            "url": "http://www.openwall.com/lists/oss-security/2016/06/03/8"
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          {
            "name": "GLSA-201701-21",
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            "tags": [
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              "x_transferred"
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            "url": "http://www.ubuntu.com/usn/USN-3010-1"
          }
        ],
        "title": "CVE Program Container"
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    "cna": {
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          "product": "n/a",
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      "providerMetadata": {
        "dateUpdated": "2021-01-06T16:15:42",
        "orgId": "f81092c5-7f14-476d-80dc-24857f90be84",
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        {
          "name": "GLSA-201701-21",
          "tags": [
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          "url": "https://security.gentoo.org/glsa/201701-21"
        },
        {
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          "url": "https://source.android.com/security/bulletin/2016-11-01.html"
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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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