cnvd - cnvd-2019-42857

cnvd-2019-42857

Vulnerability from cnvd

Title: PyYAML存在未明漏洞

Description:

PyYAML是一款基于Python的下一代YAML解析器。

PyYAML 4.1之前版本中存在安全漏洞，该漏洞源于程序没有使用‘yaml.safe_load’函数。攻击者可利用该漏洞执行任意代码。

Severity: 高

Patch Name: PyYAML存在未明漏洞的补丁

Patch Description:

PyYAML是一款基于Python的下一代YAML解析器。

PyYAML 4.1之前版本中存在安全漏洞，该漏洞源于程序没有使用‘yaml.safe_load’函数。攻击者可利用该漏洞执行任意代码。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/yaml/pyyaml/blob/master/CHANGES

Reference: https://github.com/yaml/pyyaml/blob/master/CHANGES

Impacted products

Name
pyyaml PyYAML <4.1

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-18342",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18342"
    }
  },
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  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/yaml/pyyaml/blob/master/CHANGES",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-42857",
  "openTime": "2019-11-29",
  "patchDescription": "PyYAML\u662f\u4e00\u6b3e\u57fa\u4e8ePython\u7684\u4e0b\u4e00\u4ee3YAML\u89e3\u6790\u5668\u3002\r\n\r\nPyYAML 4.1\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u4f7f\u7528\u2018yaml.safe_load\u2019\u51fd\u6570\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\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": "PyYAML\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "pyyaml PyYAML \u003c4.1"
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  "referenceLink": "https://github.com/yaml/pyyaml/blob/master/CHANGES",
  "serverity": "\u9ad8",
  "submitTime": "2018-07-04",
  "title": "PyYAML\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2017-18342 (GCVE-0-2017-18342)

Vulnerability from cvelistv5

Published

2018-06-27 12:00

Modified

2024-08-05 21:20

Severity ?

CWE

Summary

In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function.

References

▼	URL	Tags
	https://github.com/yaml/pyyaml/pull/74	x_refsource_MISC
	https://github.com/yaml/pyyaml/blob/master/CHANGES	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/	vendor-advisory, x_refsource_FEDORA
	https://github.com/marshmallow-code/apispec/issues/278	x_refsource_MISC
	https://github.com/yaml/pyyaml/issues/193	x_refsource_MISC
	https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation	x_refsource_MISC
	https://security.gentoo.org/glsa/202003-45	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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    "state": "PUBLISHED"
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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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