The ACPI subsystem in the Linux kernel before 2.6.36.2 uses...

Vulnerability Description

The ACPI subsystem in the Linux kernel before 2.6.36.2 uses 0222 permissions for the debugfs custom_method file, which allows local users to gain privileges by placing a custom ACPI method in the ACPI interpreter tables, related to the acpi_debugfs_init function in drivers/acpi/debugfs.c.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=663542
• http://secunia.com/advisories/42778
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html
• http://www.securityfocus.com/bid/45408
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
• http://www.vupen.com/english/advisories/2011/0298
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2
• http://openwall.com/lists/oss-security/2010/12/15/3
• http://www.vupen.com/english/advisories/2011/0012
• http://openwall.com/lists/oss-security/2010/12/15/7
• http://www.exploit-db.com/exploits/15774/
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ed3aada1bf34c5a9e98af167f125f8a740fc726a
• https://exchange.xforce.ibmcloud.com/vulnerabilities/64155