CVE-2021-3669
MEDIUM
5.5
CVSS Score
Published: August 26, 2022 at 03:25 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
25 products affected across 5 vendorsLinux KernelDebian LinuxFedora
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%95%
All versions
2.0 ≤ v < 2.7
Affected range stops below 2.7, so it looks safe — our inference, not a vendor statement
All versions
redhat-enterprise-linux (environment) · redhat-enterprise-linux-eus (environment) · redhat-enterprise-linux-for-power-little-endian (environment) · redhat-enterprise-linux-for-power-little-endian-eus (environment)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (5)
x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2021-3669x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1980619x_refsource_MISCIssue TrackingPermissions Required
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1986473x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://security-tracker.debian.org/tracker/CVE-2021-3669Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.htmlCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-400CWE-770
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