What is CVE-2021-43975?

CVE-2021-43975 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.7 out of 10, classified as a Out-of-bounds Write flaw (CWE-787). CVE-2021-43975 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-43975?

CVE-2021-43975 has a CVSS score of 6.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2021-43975?

No patch is currently available for CVE-2021-43975. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-43975 actively exploited?

CVE-2021-43975 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2021-43975

Medium

In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value.

Package Linux Kernel

Published 2021-11-17

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-787

CVE-2021-43975 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2021-43975 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html

Mailing List Third Party Advisory
Lists
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X24M7KDC4OJOZNS3RDSYC7ELNELOLQ2N/
Lists
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YODMYMGZYDXQKGJGX7TJG4XV4L5YLLBD/
Kernel.org
https://lore.kernel.org/netdev/163698540868.13805.17800408021782408762.git-patchwork-notify%40kernel.org/T/
Security
https://security.netapp.com/advisory/ntap-20211210-0001/

Third Party Advisory
Debian Security
https://www.debian.org/security/2022/dsa-5096

Third Party Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=b922f622592af76b57cbc566eaeccda0b31a3496
Patch

Details

CVE ID CVE-2021-43975

Severity Medium

CVSS score 6.7 / 10

CVSS version 3.1

Published 2021-11-17

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-43975?

CVE-2021-43975 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.7 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . CVE-2021-43975 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-43975?

CVE-2021-43975 has a CVSS score of 6.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2021-43975?

No patch is currently available for CVE-2021-43975. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-43975 actively exploited?

No — CVE-2021-43975 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. View CWE-787 on MITRE CWE →