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Vulnerability DatabaseCVE-2021-33634
CVE-2021-33634:
NixOS vulnerability analysis and mitigation
Overview
CVE-2021-33634 is a vulnerability in iSulad that uses the lcr+lxc runtime (default) to run malicious images, which can cause a Denial of Service (DOS). The vulnerability was discovered in 2021 and affects openEuler's lcr component (NVD, CVE).
Technical details
The vulnerability has a CVSS v3.1 Base Score of 5.5 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The attack requires local access and user interaction, but no privileges. While there is no impact on confidentiality or integrity, it can have a high impact on availability (NVD).
Impact
The primary impact of this vulnerability is on system availability, as it can cause a Denial of Service condition when malicious images are run using the lcr+lxc runtime (NVD).
Mitigation and workarounds
Patches have been developed and merged to address this vulnerability through pull requests in the openEuler repository. The fixes include setting environment variables to avoid invoking the lxc binary directly (Gitee PR 251, Gitee PR 257).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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