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CVE-2018-14647

Quick assessment

Affected
The Python Project Python
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Python是Python软件基金会的一套开源的、面向对象的程序设计语言。该语言具有可扩展、支持模块和包、支持多种平台等特点。 Python中存在资源管理错误漏洞，该漏洞源于程序没有初始化Expat的散列盐值。攻击者可利用该漏洞造成拒绝服务。以下产品及版本受到影响：Python 3.7.0版本，3.6.0版本至3.6.6版本，3.5.0版本至3.5.6版本，3.4.0版本至3.4.9版本，2.7.0版本至2.7.15版本。

AI Predicted 5.3 Difficulty: Moderate EPSS 10.91% · P96
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I. Basic Information for CVE-2018-14647

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by constructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM. The vulnerability exists in Python versions 3.7.0, 3.6.0 through 3.6.6, 3.5.0 through 3.5.6, 3.4.0 through 3.4.9, 2.7.0 through 2.7.15.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
初始化不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Python 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Python是Python软件基金会的一套开源的、面向对象的程序设计语言。该语言具有可扩展、支持模块和包、支持多种平台等特点。 Python中存在资源管理错误漏洞，该漏洞源于程序没有初始化Expat的散列盐值。攻击者可利用该漏洞造成拒绝服务。以下产品及版本受到影响：Python 3.7.0版本，3.6.0版本至3.6.6版本，3.5.0版本至3.5.6版本，3.4.0版本至3.4.9版本，2.7.0版本至2.7.15版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
The Python Project Python 3.8, 3.7, 3.6, 3.5, 3.4, 2.7 -

II. Public POCs for CVE-2018-14647

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III. Intelligence Information for CVE-2018-14647

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Vendor Advisories for CVE-2018-14647 (9)

Mailing List Discussions for CVE-2018-14647 (5)

Other References for CVE-2018-14647 (1)

IV. Related Vulnerabilities

Same product: Python
Same weakness: CWE-665

V. Comments for CVE-2018-14647

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