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CVE-2021-25684— apport can be stalled by reading a FIFO

Quick assessment

Affected
Canonical apport
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.

Apport是一款用于收集并反馈错误信息（当应用程序崩溃时操作系统认为有用的信息）的工具包。 Apport 存在输入验证错误漏洞， 本地攻击者可利用该漏洞升级特权并运行任意代码。

CVSS 8.8 · High EPSS 0.57% · P45

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-25684

Vulnerability Information
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Vulnerability Title
apport can be stalled by reading a FIFO
Source: CVE Program / CVE List V5
Vulnerability Description
It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Apport 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apport是一款用于收集并反馈错误信息（当应用程序崩溃时操作系统认为有用的信息）的工具包。 Apport 存在输入验证错误漏洞， 本地攻击者可利用该漏洞升级特权并运行任意代码。
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
Canonical apport 2.20.1 ~ 2.20.1-0ubuntu2.30 -

II. Public POCs for CVE-2021-25684

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III. Intelligence Information for CVE-2021-25684

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Other References for CVE-2021-25684 (1)

Same Patch Batch · Canonical · 2021-06-11 · 3 CVEs total

CVE-2021-25682 8.8 HIGH apport improperly parses /proc/pid/status
CVE-2021-25683 8.8 HIGH apport improperly parses /proc/pid/stat

IV. Related Vulnerabilities

Same product: apport
Same vendor: Canonical
Same weakness: CWE-20

V. Comments for CVE-2021-25684

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