Medium severity · published Aug 26, 2022
CVE-2021-3669
A flaw was found in the Linux kernel
5.5
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
All versions, or not specified · source: NVD
BO
Build OF Quarkus · Redhat
2.0 before 2.7 · source: NVD
CL
Codeready Linux Builder · Redhat
All versions, or not specified · source: NVD
DL
Debian Linux · Debian
10.0; 11.0 · source: NVD
DT
Developer Tools · Redhat
1.0 · source: NVD
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0 · source: NVD
EL
Enterprise Linux Aus · Redhat
8.6 · source: NVD
EL
Enterprise Linux For Ibm Z Systems · Redhat
8.0 · source: NVD
EL
Enterprise Linux For Ibm Z Systems Eus · Redhat
8.6 · source: NVD
EL
Enterprise Linux For Power Little Endian · Redhat
8.0 · source: NVD
EL
Enterprise Linux For Power Little Endian Eus · Redhat
8.6 · source: NVD
EL
Enterprise Linux For Real Time · Redhat
8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3669
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3669
Issue Tracking
https://access.redhat.com/security/cve/CVE-2021-3669
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1980619
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1986473
Issue Tracking
https://security-tracker.debian.org/tracker/CVE-2021-3669
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
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