Vulnerability Monitor

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CVE-2021-3669


A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.


Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 24 products from linux, from ibm, from ibm and 21 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2022-08-26T16:15:09.273

Last Modified

2025-11-03T22:15:50.677

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-400
  • Type: Primary
    CWE-770

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel * Yes
Application ibm spectrum_copy_data_management ≤ 2.2.15.0 Yes
Application ibm spectrum_protect_plus ≤ 10.1.10.2 Yes
Operating System linux linux_kernel - No
Operating System debian debian_linux 10.0 Yes
Operating System debian debian_linux 11.0 Yes
Operating System fedoraproject fedora 34 Yes
Application redhat build_of_quarkus < 2.7 Yes
Application redhat developer_tools 1.0 Yes
Operating System redhat enterprise_linux 6.0 Yes
Operating System redhat enterprise_linux 7.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux_aus 8.6 Yes
Operating System redhat enterprise_linux_for_ibm_z_systems 8.0 Yes
Operating System redhat enterprise_linux_for_ibm_z_systems_eus 8.6 Yes
Operating System redhat enterprise_linux_for_power_little_endian 8.0 Yes
Operating System redhat enterprise_linux_for_power_little_endian_eus 8.6 Yes
Operating System redhat enterprise_linux_for_real_time 8 Yes
Operating System redhat enterprise_linux_for_real_time_for_nfv 8 Yes
Operating System redhat enterprise_linux_for_real_time_for_nfv_tus 8.6 Yes
Operating System redhat enterprise_linux_for_real_time_tus 8.6 Yes
Operating System redhat enterprise_linux_server_aus 8.6 Yes
Operating System redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 8.6 Yes
Operating System redhat enterprise_linux_server_tus 8.6 Yes
Application redhat codeready_linux_builder - Yes
Operating System redhat enterprise_linux 8.0 No
Operating System redhat enterprise_linux_eus 8.6 No
Operating System redhat enterprise_linux_for_power_little_endian 8.0 No
Operating System redhat enterprise_linux_for_power_little_endian_eus 8.6 No
Application redhat openshift_container_platform 4.6 Yes
Application redhat openshift_container_platform 4.7 Yes
Application redhat openshift_container_platform 4.9 Yes
Application redhat virtualization_host 4.0 Yes
Operating System redhat enterprise_linux 8.0 No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.