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CVE-2011-1021

LowPublished

drivers/acpi/debugfs.c in the Linux kernel before 3.0 allows local users to modify arbitrary kernel memory locations by leveraging root privileges to write...

Published: Jun 21, 2012
Updated: Aug 6, 2024
Assigning CNA: redhat
Evidence observed: Dec 18, 2010

Primary CVSS

3.6/ 10Low

nvd · CVSS 2.0

AV:L/AC:L/Au:N/C:N/I:P/A:P

EPSS probability estimate

0.9%

Low · next 30 days

Percentile: 58.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

drivers/acpi/debugfs.c in the Linux kernel before 3.0 allows local users to modify arbitrary kernel memory locations by leveraging root privileges to write to the /sys/kernel/debug/acpi/custom_method file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4347.

Sources

Linux Kernel < 2.6.37-rc2 - 'ACPI custom_method' Local Privilege EscalationExploit
Jon Oberheide · linux · Dec 18, 2010

Responsible use

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