What’s Vulnerable › Vulnerabilities

CVE-2021-33634: Malicious image running containers may cause DoS attacks

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-29 · updated 2026-06-17
• Weakness: CWE-665

Description

iSulad uses the lcr+lxc runtime (default) to run malicious images, which can cause DOS.

Affected products

• openEuler Icr: before 2.0.9-6; from 2.1.0 before 2.1.2-3 — fixed in 2.0.9-6, 2.1.2-3

How to fix

Upgrade to a fixed version: openEuler Icr 2.0.9-6, 2.1.2-3. Check the vendor advisory for mitigations.

References

• https://gitee.com/src-openeuler/lcr/pulls/251/files
• https://gitee.com/src-openeuler/lcr/pulls/257/files
• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1692
• https://gitee.com/src-openeuler/lcr/pulls/251/files
• https://gitee.com/src-openeuler/lcr/pulls/257/files
• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1692

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