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.

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-29228 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.
Ubuntu USN Ubuntu USN USN-5136-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5137-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5161-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5162-1 Linux kernel vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

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History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T03:30:37.899Z

Reserved: 2021-10-11T00:00:00

Link: CVE-2021-42252

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-10-11T19:15:07.713

Modified: 2024-11-21T06:27:27.660

Link: CVE-2021-42252

cve-icon Redhat

Severity : Important

Publid Date: 2021-10-11T00:00:00Z

Links: CVE-2021-42252 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses