CVE-2010-4347 Information

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.

Reference

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