Vulnerability-Lookup

CNVD-2017-07325

Vulnerability from cnvd - Published: 2017-05-24

Title

libxml2堆缓冲区溢出越边界读取漏洞（CNVD-2017-07325 ）

Description

libxml2是GNOME项目组所研发的一个基于C语言的用来解析XML文档的函数库，它支持多种编码格式、Xpath解析、Well-formed和valid验证等。 libxml2 20904-GITv2.9.4-16-g0741801版本中的dict.c文件的‘xmlDictAddString’函数存在堆缓冲区溢出越边界读取漏洞。攻击者可利用该漏洞造成堆缓冲区越边界读取，导致使用libxml2的程序崩溃。

Severity

中

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： http://xmlsoft.org/

Reference

http://www.openwall.com/lists/oss-security/2017/05/15/1

Impacted products

Name
libxml2 libxml2 20904-GITv2.9.4-16-g0741801

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-9050"
    }
  },
  "description": "libxml2\u662fGNOME\u9879\u76ee\u7ec4\u6240\u7814\u53d1\u7684\u4e00\u4e2a\u57fa\u4e8eC\u8bed\u8a00\u7684\u7528\u6765\u89e3\u6790XML\u6587\u6863\u7684\u51fd\u6570\u5e93\uff0c\u5b83\u652f\u6301\u591a\u79cd\u7f16\u7801\u683c\u5f0f\u3001Xpath\u89e3\u6790\u3001Well-formed\u548cvalid\u9a8c\u8bc1\u7b49\u3002\r\n\r\nlibxml2 20904-GITv2.9.4-16-g0741801\u7248\u672c\u4e2d\u7684dict.c\u6587\u4ef6\u7684\u2018xmlDictAddString\u2019\u51fd\u6570\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u8d8a\u8fb9\u754c\u8bfb\u53d6\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u5806\u7f13\u51b2\u533a\u8d8a\u8fb9\u754c\u8bfb\u53d6\uff0c\u5bfc\u81f4\u4f7f\u7528libxml2\u7684\u7a0b\u5e8f\u5d29\u6e83\u3002",
  "discovererName": "Marcel B\u00f6hme",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttp://xmlsoft.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-07325",
  "openTime": "2017-05-24",
  "products": {
    "product": "libxml2 libxml2 20904-GITv2.9.4-16-g0741801"
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2017/05/15/1",
  "serverity": "\u4e2d",
  "submitTime": "2017-05-22",
  "title": "libxml2\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u8d8a\u8fb9\u754c\u8bfb\u53d6\u6f0f\u6d1e\uff08CNVD-2017-07325 \uff09"
}

CVE-2017-9050 (GCVE-0-2017-9050)

Vulnerability from cvelistv5 – Published: 2017-05-18 06:13 – Updated: 2025-12-17 22:10

Summary

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-17 22:10 UTC

CWE

n/a
CWE-122 - Heap-based Buffer Overflow

Assigner

mitre mitre root

References

6 references

URL	Tags
http://www.securityfocus.com/bid/98568	vdb-entryx_refsource_BID
http://www.debian.org/security/2017/dsa-3952	vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/201711-01	vendor-advisoryx_refsource_GENTOO
http://www.openwall.com/lists/oss-security/2017/05/15/1	x_refsource_MISC
https://lists.apache.org/thread.html/rf4c02775860…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r58af02e294b…	mailing-listx_refsource_MLIST

Date Public

2017-05-18 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.

Detection rules are retrieved from Rulezet.

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

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.