What is CVE-2021-47158?

CVE-2021-47158 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-2021-47158 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47158?

CVE-2021-47158 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-2021-47158?

No patch is currently available for CVE-2021-47158. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47158 actively exploited?

CVE-2021-47158 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-2021-47158

Medium

In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: add error handling in sja1105_setup() If any of sja1105_static_config_load(), sja1105_clocking_setup() or sja1105_devlink_setup() fails, we can't just return in the middle of sja1105_setup() or memory will leak. Add a cleanup path.

Package Linux Kernel

Published 2024-03-25

Last modified 2024-12-12

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-2021-47158 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

The following references provide additional information about CVE-2021-47158 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/987e4ab8b8a4fcbf783069e03e7524cd39ffd563
Patch
Kernel patch commit
https://git.kernel.org/stable/c/cec279a898a3b004411682f212215ccaea1cd0fb
Patch
Kernel patch commit
https://git.kernel.org/stable/c/dd8609f203448ca6d58ae71461208b3f6b0329b0
Patch

Details

CVE ID CVE-2021-47158

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-03-25

Modified 2024-12-12

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47158?

CVE-2021-47158 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-2021-47158 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47158?

CVE-2021-47158 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-2021-47158?

No patch is currently available for CVE-2021-47158. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47158 actively exploited?

No — CVE-2021-47158 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. View CWE-401 on MITRE CWE →