CVE-2011-1021

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Summary

CVECVE-2011-1021
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-06-21 23:55:01 UTC
Updated2026-04-29 01:13:23 UTC
Descriptiondrivers/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.

Risk And Classification

Primary CVSS: v2.0 3.6 from [email protected]

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

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
Partial

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel 2.6.9 rc1 All All
Operating System Linux Linux Kernel 2.6.9 rc2 All All
Operating System Linux Linux Kernel 2.6.9 rc3 All All
Operating System Linux Linux Kernel 2.6.9 rc4 All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
680841 – (CVE-2011-1021) CVE-2011-1021 kernel: /sys/kernel/debug/acpi/custom_method can bypass module restrictions af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
404 Not Found af854a3a-2127-422b-91ae-364da2661108 ftp.osuosl.org
ACPI: Split out custom_method functionality into an own driver · torvalds/linux@526b4af · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Exploit, Patch
oss-security - Re: CVE request: kernel: /sys/kernel/debug/acpi/custom_method can bypass module restrictions af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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