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CVE-2022-39280— Regular expression denial of service in dparse

Quick assessment

Affected
pyupio dparse
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Dependency Parser是pyup.io开源的一个 Python 依赖文件的解析器。 Dependency Parser 0.5.2之前的版本存在安全漏洞，该漏洞源于其dparse包含一个容易受到正则表达式拒绝服务攻击的正则表达式。

CVSS 5.9 · Medium EPSS 1.06% · P62

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2022-39280

Vulnerability Information
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Vulnerability Title
Regular expression denial of service in dparse
Source: CVE Program / CVE List V5
Vulnerability Description
dparse is a parser for Python dependency files. dparse in versions before 0.5.2 contain a regular expression that is vulnerable to a Regular Expression Denial of Service. All the users parsing index server URLs with dparse are impacted by this vulnerability. A patch has been applied in version `0.5.2`, all the users are advised to upgrade to `0.5.2` as soon as possible. Users unable to upgrade should avoid passing index server URLs in the source file to be parsed.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Dependency Parser 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dependency Parser是pyup.io开源的一个 Python 依赖文件的解析器。 Dependency Parser 0.5.2之前的版本存在安全漏洞，该漏洞源于其dparse包含一个容易受到正则表达式拒绝服务攻击的正则表达式。
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
pyupio dparse < 0.5.2 -

II. Public POCs for CVE-2022-39280

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III. Intelligence Information for CVE-2022-39280

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Patches & Fixes for CVE-2022-39280 (2)

Vendor Advisories for CVE-2022-39280 (1)

News Coverage for CVE-2022-39280 (1)

IV. Related Vulnerabilities

Same vendor: pyupio
Same weakness: CWE-400

V. Comments for CVE-2022-39280

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