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CVE-2021-20270

Quick assessment

Affected
n/a python-pygments
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.

Red Hat Ansible Automation是 （Red Hat）开源的一个应用软件。提供一个自动化基础架构的各个方面，从服务器和网络设备到操作系统，应用程序和安全性。 Red Hat Ansible Automation 存在安全漏洞，该漏洞源于无限循环可能导致DoS。

AI Predicted 5.3 Difficulty: Easy EPSS 2.76% · P85

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-20270

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the "exception" keyword.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Ansible Automation 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Ansible Automation是 （Red Hat）开源的一个应用软件。提供一个自动化基础架构的各个方面，从服务器和网络设备到操作系统，应用程序和安全性。 Red Hat Ansible Automation 存在安全漏洞，该漏洞源于无限循环可能导致DoS。
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
- python-pygments python-pygments 2.7.4 -

II. Public POCs for CVE-2021-20270

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III. Intelligence Information for CVE-2021-20270

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Vendor Advisories for CVE-2021-20270 (3)

Mailing List Discussions for CVE-2021-20270 (2)

Same Patch Batch · n/a · 2021-03-23 · 39 CVEs total

CVE-2021-29068 9.9 CRITICAL Netgear NETGEAR 缓冲区错误漏洞
CVE-2021-29066 9.6 CRITICAL Netgear NETGEAR 授权问题漏洞
CVE-2021-29067 9.6 CRITICAL Netgear NETGEAR 授权问题漏洞
CVE-2021-29065 9.6 CRITICAL Netgear NETGEAR RBR850 授权问题漏洞
CVE-2021-29071 9.6 CRITICAL Netgear NETGEAR 命令注入漏洞
CVE-2021-29076 9.6 CRITICAL Netgear NETGEAR 命令注入漏洞
CVE-2021-29077 9.6 CRITICAL 多款Netgear产品命令注入漏洞
CVE-2021-29078 9.6 CRITICAL 多款Netgear产品命令注入漏洞
CVE-2021-29079 9.6 CRITICAL Netgear NETGEAR 命令注入漏洞
CVE-2021-29082 9.6 CRITICAL 多款Netgear产品信息泄露漏洞
CVE-2021-29075 8.4 HIGH 多款Netgear产品缓冲区错误漏洞
CVE-2021-29074 8.4 HIGH NETGEAR 多款产品缓冲区错误漏洞
CVE-2021-29072 8.4 HIGH Netgear NETGEAR 命令注入漏洞
CVE-2021-29070 8.4 HIGH Netgear NETGEAR 命令注入漏洞
CVE-2021-29081 8.4 HIGH 多款Netgear产品缓冲区错误漏洞
CVE-2021-29080 8.1 HIGH Netgear NETGEAR 授权问题漏洞
CVE-2021-29073 7.6 HIGH Netgear NETGEAR 缓冲区错误漏洞
CVE-2020-28503 7.3 HIGH Prototype Pollution
CVE-2021-29069 7.3 HIGH 多款Netgear产品命令注入漏洞
CVE-2021-23362 5.3 MEDIUM Regular Expression Denial of Service (ReDoS)

Showing top 20 of 39 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-835

V. Comments for CVE-2021-20270

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