What is CVE-2021-42252?

CVE-2021-42252 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2021-42252 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-42252?

CVE-2021-42252 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2021-42252?

No patch is currently available for CVE-2021-42252. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-42252 actively exploited?

CVE-2021-42252 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-42252

High

An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes.

Package Linux Kernel

Published 2021-10-11

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

References

The following references provide additional information about CVE-2021-42252 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6

Release Notes Vendor Advisory
Security
https://security.netapp.com/advisory/ntap-20211112-0006/

Third Party Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96
Patch

Details

CVE ID CVE-2021-42252

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2021-10-11

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-42252?

CVE-2021-42252 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2021-42252 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-42252?

CVE-2021-42252 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2021-42252?

No patch is currently available for CVE-2021-42252. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-42252 actively exploited?

No — CVE-2021-42252 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.