CVE-2021-3899
Quick assessment
Affected
Canonical Ltd. Apport
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Canonical Apport是英国Canonical公司的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。 Canonical Apport 存在竞争条件问题漏洞，该漏洞源于Apport错误地检测奔溃后可执行文件是否被替换。本地攻击者可能会利用该漏洞以 root 用户身份执行任意代码。
Possible ATT&CK Techniques 3 AI
T1055 · Process Injection T1068 · Exploitation for Privilege Escalation T1211 · Exploitation for Stealth
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2021-3899
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
There is a race condition in the 'replaced executable' detection that, with the correct local configuration, allow an attacker to execute arbitrary code as root.
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
Canonical Apport 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Canonical Apport是英国Canonical公司的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。 Canonical Apport 存在竞争条件问题漏洞，该漏洞源于Apport错误地检测奔溃后可执行文件是否被替换。本地攻击者可能会利用该漏洞以 root 用户身份执行任意代码。
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 Ltd. | Apport | 0 ~ 2.21.0 | - |
|
II. Public POCs for CVE-2021-3899
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | race condition in apport lead to Local Privilege Escalation on Ubuntu | https://github.com/liumuqing/CVE-2021-3899_PoC | POC Details |
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-3899
请登录查看更多情报信息。
Vendor Advisories for CVE-2021-3899 (2)
-
CVE Record: CVE-2021-3899 issue-tracking
-
https://ubuntu.com/security/notices/USN-5427-1 vendor-advisory
Other References for CVE-2021-3899 (1)
Same Patch Batch · Canonical Ltd. · 2024-06-03 · 3 CVEs total
| CVE-2022-1242 | Canonical Apport 安全特征问题漏洞 | |
| CVE-2022-0555 | Canonical Subiquity 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-3899
No comments yet