Vulnerability-Lookup

CNVD-2016-04188

Vulnerability from cnvd - Published: 2016-06-22

Title

Expat XML解析器拒绝服务漏洞

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。 Expat的XML解析器未能使用合适的熵进行哈希值初始化，允许远程攻击者可利用漏洞构建特殊的XML文档，诱使应用解析，可使应用程序崩溃。

Severity

高

Patch Name

Expat XML解析器拒绝服务漏洞的补丁

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。 Expat的XML解析器未能使用合适的熵进行哈希值初始化，允许远程攻击者可利用漏洞构建特殊的XML文档，诱使应用解析，可使应用程序崩溃。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-2016-5300"
    }
  },
  "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\nExpat\u7684XML\u89e3\u6790\u5668\u672a\u80fd\u4f7f\u7528\u5408\u9002\u7684\u71b5\u8fdb\u884c\u54c8\u5e0c\u503c\u521d\u59cb\u5316\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u6784\u5efa\u7279\u6b8a\u7684XML\u6587\u6863\uff0c\u8bf1\u4f7f\u5e94\u7528\u89e3\u6790\uff0c\u53ef\u4f7f\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\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-2016-04188",
  "openTime": "2016-06-22",
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  "serverity": "\u9ad8",
  "submitTime": "2016-06-19",
  "title": "Expat XML\u89e3\u6790\u5668\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2016-5300 (GCVE-0-2016-5300)

Vulnerability from cvelistv5 – Published: 2016-06-16 18:00 – Updated: 2024-08-06 01:00

Summary

The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

13 references

URL	Tags
https://www.tenable.com/security/tns-2016-20	x_refsource_CONFIRM
http://www.oracle.com/technetwork/security-adviso…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2016/06/04/4	mailing-listx_refsource_MLIST
http://www.debian.org/security/2016/dsa-3597	vendor-advisoryx_refsource_DEBIAN
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/91159	vdb-entryx_refsource_BID
https://security.gentoo.org/glsa/201701-21	vendor-advisoryx_refsource_GENTOO
https://source.android.com/security/bulletin/2016…	x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-3010-1	vendor-advisoryx_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2016/06/04/5	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rf4c02775860…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r58af02e294b…	mailing-listx_refsource_MLIST
https://kc.mcafee.com/corporate/index?page=conten…	x_refsource_CONFIRM

Date Public

2016-06-04 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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Action not permitted

CNVD-2016-04188

CVE-2016-5300 (GCVE-0-2016-5300)

Tags

Sightings

Nomenclature

Related by attack behaviour