CVE-2021-3669 — MEDIUM (5.5)

Q: What is CVE-2021-3669?

CVE-2021-3669 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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.

Q: How severe is CVE-2021-3669?

CVE-2021-3669 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-3669?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Ibm Spectrum Copy Data Management, Ibm Spectrum Protect Plus, Debian Debian Linux, Fedoraproject Fedora.

Vulnerability 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.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linux	Linux Kernel	All versions
Ibm	Spectrum Copy Data Management	>= 2.2.0.0, <= 2.2.15.0
Ibm	Spectrum Protect Plus	>= 10.1.0, <= 10.1.10.2
Debian	Debian Linux	10.0
Fedoraproject	Fedora	34
Redhat	Build Of Quarkus	>= 2.0, < 2.7
Redhat	Developer Tools	1.0
Redhat	Enterprise Linux	6.0
Redhat	Enterprise Linux Aus	8.6
Redhat	Enterprise Linux For Ibm Z Systems	8.0
Redhat	Enterprise Linux For Ibm Z Systems Eus	8.6
Redhat	Enterprise Linux For Power Little Endian	8.0
Redhat	Enterprise Linux For Power Little Endian Eus	8.6
Redhat	Enterprise Linux For Real Time	8
Redhat	Enterprise Linux For Real Time For Nfv	8
Redhat	Enterprise Linux For Real Time For Nfv Tus	8.6
Redhat	Enterprise Linux For Real Time Tus	8.6
Redhat	Enterprise Linux Server Aus	8.6
Redhat	Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions	8.6
Redhat	Enterprise Linux Server Tus	8.6

Related Weaknesses (CWE)

CWE-770 CWE-400

References

https://access.redhat.com/security/cve/CVE-2021-3669Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1980619Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1986473Issue TrackingPermissions Required
https://security-tracker.debian.org/tracker/CVE-2021-3669Issue TrackingThird Party Advisory
https://access.redhat.com/security/cve/CVE-2021-3669Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1980619Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1986473Issue TrackingPermissions Required
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
https://security-tracker.debian.org/tracker/CVE-2021-3669Issue TrackingThird Party Advisory

FAQ

What is CVE-2021-3669?

CVE-2021-3669 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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.

How severe is CVE-2021-3669?

CVE-2021-3669 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3669?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Ibm Spectrum Copy Data Management, Ibm Spectrum Protect Plus, Debian Debian Linux, Fedoraproject Fedora.