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CVE-2021-33632— TOCTOU Race Condition problem in iSulad

Quick assessment

Affected
openEuler iSulad
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.

iSulad是src-openEuler开源的一个轻量级容器引擎。 iSulad 2.0.18-13 版本 2.1.4-1 版本和 2.1.4-2 版本存在安全漏洞，该漏洞源于存在竞争条件问题。

CVSS 7.0 · High EPSS 0.15% · P3

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-33632

Vulnerability Information
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Vulnerability Title
TOCTOU Race Condition problem in iSulad
Source: CVE Program / CVE List V5
Vulnerability Description
Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in openEuler iSulad on Linux allows Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions. This vulnerability is associated with program files https://gitee.Com/openeuler/iSulad/blob/master/src/cmd/isulad/main.C. This issue affects iSulad: 2.0.18-13, from 2.1.4-1 through 2.1.4-2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
iSulad 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
iSulad是src-openEuler开源的一个轻量级容器引擎。 iSulad 2.0.18-13 版本 2.1.4-1 版本和 2.1.4-2 版本存在安全漏洞，该漏洞源于存在竞争条件问题。
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
openEuler iSulad 2.0.18-13 -

II. Public POCs for CVE-2021-33632

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III. Intelligence Information for CVE-2021-33632

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Other References for CVE-2021-33632 (7)

Same Patch Batch · openEuler · 2024-03-25 · 5 CVEs total

CVE-2024-24892 8.1 HIGH Unauthorized RCE in migration-tools
CVE-2024-24897 8.1 HIGH Remote command execution in A-Tune-Collector
CVE-2024-24890 7.8 HIGH Command injection in ioprobe of gala-gopher
CVE-2024-24899 7.2 HIGH Command injection in aops-zeus

IV. Related Vulnerabilities

Same product: iSulad
Same vendor: openEuler
Same weakness: CWE-367

V. Comments for CVE-2021-33632

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