What is CVE-2021-3744?

CVE-2021-3744 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401). CVE-2021-3744 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-3744?

CVE-2021-3744 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-3744?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2021-3744 patch availability.

Is CVE-2021-3744 actively exploited?

CVE-2021-3744 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2021-3744

Medium

A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption). This vulnerability is similar with the older CVE-2019-18808.

Package Linux Kernel

Published 2022-03-04

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-401

CVE-2021-3744 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

References

11 total

Openwall
http://www.openwall.com/lists/oss-security/2021/09/14/1

Exploit Mailing List Third Party Advisory
Seclists
https://seclists.org/oss-sec/2021/q3/164

Exploit Mailing List Patch Third Party Advisory
GitHub
https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680

Patch Third Party Advisory
Kernel
https://kernel.googlesource.com/pub/scm/linux/kernel/git/herbert/crypto-2.6/+/505d9dcb0f7ddf9d075e729523a33d38642ae680%5E%21/#F0

Mailing List Patch Third Party Advisory
Oracle
https://www.oracle.com/security-alerts/cpujul2022.html

Patch Third Party Advisory

Showing 5 of 11 references View all on NVD

Details

CVE ID CVE-2021-3744

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2022-03-04

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-3744?

CVE-2021-3744 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . CVE-2021-3744 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-3744?

CVE-2021-3744 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-3744?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2021-3744 patch availability.
Is CVE-2021-3744 actively exploited?

No. CVE-2021-3744 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.