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CVE-2018-20843

Quick assessment

Affected
n/a n/a
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.

libexpat是一款使用C语言编写的流式XML解析器。 libexpat 2.2.7之前版本中的libexpat存在代码问题漏洞。攻击者可借助XML名称中带有大量冒号的XML输入利用该漏洞造成拒绝服务（消耗大量RAM及CPU资源）。

AI Predicted 5.3 Difficulty: Easy EPSS 7.11% · P94

Possible ATT&CK Techniques 1 AI

T1499.001 · OS Exhaustion Flood
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I. Basic Information for CVE-2018-20843

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
libexpat 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libexpat是一款使用C语言编写的流式XML解析器。 libexpat 2.2.7之前版本中的libexpat存在代码问题漏洞。攻击者可借助XML名称中带有大量冒号的XML输入利用该漏洞造成拒绝服务（消耗大量RAM及CPU资源）。
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
- n/a n/a -

II. Public POCs for CVE-2018-20843

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III. Intelligence Information for CVE-2018-20843

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Patches & Fixes for CVE-2018-20843 (2)

Vendor Advisories for CVE-2018-20843 (9)

Mailing List Discussions for CVE-2018-20843 (5)

Other References for CVE-2018-20843 (4)

Same Patch Batch · n/a · 2019-06-24 · 28 CVEs total

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Showing top 20 of 28 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2018-20843

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