Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2021-3669
- IBM » Spectrum Protect PlusVersions from including (>=) 10.1.0 and up to, including, (<=) 10.1.10.2cpe:2.3:a:ibm:spectrum_protect_plus:*:*:*:*:*:*:*:*
- IBM » Spectrum Copy Data ManagementVersions from including (>=) 2.2.0.0 and up to, including, (<=) 2.2.15.0cpe:2.3:a:ibm:spectrum_copy_data_management:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_aus:8.6:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openshift_container_platform:4.6:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openshift_container_platform:4.7:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openshift_container_platform:4.9:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:developer_tools:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:build_of_quarkus:*:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.6:*:*:*:*:*:*:*
- Redhat » Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions » Version: 8.6cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:codeready_linux_builder:-:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Threat overview for CVE-2021-3669
Top countries where our scanners detected CVE-2021-3669
Top open port discovered on systems with this issue
53
IPs affected by CVE-2021-3669 688,453
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-3669!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2021-3669
0.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3669
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-3669
-
The product does not properly control the allocation and maintenance of a limited resource.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Secondary)
-
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-3669
-
https://security-tracker.debian.org/tracker/CVE-2021-3669
CVE-2021-3669Issue Tracking;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1980619
Bug Access DeniedIssue Tracking;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1986473
1986473 – (CVE-2021-3669) CVE-2021-3669 kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment countsIssue Tracking;Permissions Required
-
https://access.redhat.com/security/cve/CVE-2021-3669
CVE-2021-3669- Red Hat Customer PortalIssue Tracking;Third Party Advisory
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