medium
6.9
CWE
269
Advisory Published
CVE Published
Updated

CVE-2010-4347

First published: Sat Nov 13 2010(Updated: )

Reported by Dave Jones, currently we have: --w--w--w-. 1 root root 0 2010-11-11 14:56 /sys/kernel/debug/acpi/custom_method which is just crazy. Change this to --w-------. This custom_method file allows to inject custom ACPI methods into the ACPI interpreter tables. This control file was introduced with world writeable permissions in Linux Kernel 2.6.33. Introduced in: <a href="http://git.kernel.org/linus/a1a541d86f50a9957beeedb122a035870d602647">http://git.kernel.org/linus/a1a541d86f50a9957beeedb122a035870d602647</a> <a href="http://git.kernel.org/linus/a25ee9200eef07377e1703697afbb5d81f89e500">http://git.kernel.org/linus/a25ee9200eef07377e1703697afbb5d81f89e500</a> Fixed in: <a href="http://git.kernel.org/linus/ed3aada1bf34c5a9e98af167f125f8a740fc726a">http://git.kernel.org/linus/ed3aada1bf34c5a9e98af167f125f8a740fc726a</a>

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:2.6.33.7-rt29.55.el5
0:2.6.33.7-rt29.55.el5
Linux Kernel<2.6.36.2
openSUSE=11.3
SUSE Linux Enterprise Real Time Extension=11-sp1

Remedy

http://openwall.com/lists/oss-security/2010/12/15/3

Remedy

http://openwall.com/lists/oss-security/2010/12/15/7

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=663542

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2010-4347?

    CVE-2010-4347 has been classified as a high severity vulnerability due to its potential to allow unauthorized access to critical system functions.

  • How do I fix CVE-2010-4347?

    To fix CVE-2010-4347, update the kernel to version 2.6.36.2 or later, or apply the necessary patches as recommended by your distribution.

  • What are the potential impacts of CVE-2010-4347?

    The potential impacts of CVE-2010-4347 include privilege escalation and the ability for attackers to execute arbitrary code through custom ACPI methods.

  • Which systems are affected by CVE-2010-4347?

    CVE-2010-4347 affects several distributions including Red Hat Enterprise Linux, openSUSE 11.3, and SUSE Linux Enterprise Real Time Extension 11 SP1.

  • Is there a workaround for CVE-2010-4347?

    A temporary workaround for CVE-2010-4347 may include changing the permissions of the /sys/kernel/debug/acpi/custom_method file to restrict access.

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