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CVE-2022-21945— cscreen: usage of fixed path /tmp/cscreen.debug

Quick assessment

Affected
openSUSE Factory
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.

cscreen是一个开源工具。允许在一个屏幕会话中运行多个控制台。非常适合在一个屏幕实例中监控和记录数据中心中的所有串行控制台。 cscreen 存在安全漏洞，该漏洞允许本地攻击者对 cscreen 造成 DoS，对非默认系统造成系统 DoS。此问题影响：openSUSE Factory cscreen 版本 1.2-1.3 和之前的版本。

CVSS 5.1 · Medium EPSS 0.24% · P15
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I. Basic Information for CVE-2022-21945

Vulnerability Information
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Vulnerability Title
cscreen: usage of fixed path /tmp/cscreen.debug
Source: CVE Program / CVE List V5
Vulnerability Description
A Insecure Temporary File vulnerability in cscreen of openSUSE Factory allows local attackers to cause DoS for cscreen and a system DoS for non-default systems. This issue affects: openSUSE Factory cscreen version 1.2-1.3 and prior versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不安全的临时文件
Source: CVE Program / CVE List V5
Vulnerability Title
cscreen 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cscreen是一个开源工具。允许在一个屏幕会话中运行多个控制台。非常适合在一个屏幕实例中监控和记录数据中心中的所有串行控制台。 cscreen 存在安全漏洞，该漏洞允许本地攻击者对 cscreen 造成 DoS，对非默认系统造成系统 DoS。此问题影响：openSUSE Factory cscreen 版本 1.2-1.3 和之前的版本。
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
openSUSE Factory cscreen ~ 1.2-1.3 -

II. Public POCs for CVE-2022-21945

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III. Intelligence Information for CVE-2022-21945

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Vendor Advisories for CVE-2022-21945 (1)

IV. Related Vulnerabilities

Same product: Factory
Same vendor: openSUSE
Same weakness: CWE-377

V. Comments for CVE-2022-21945

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