CVE-2010-4527 Information

Description

The load_mixer_volumes function in sound/oss/soundcard.c in the OSS sound subsystem in the Linux kernel before 2.6.37 incorrectly expects that a certain name field ends with a ‘\0’ character which allows local users to conduct buffer overflow attacks and gain privileges or possibly obtain sensitive information from kernel memory via a SOUND_MIXER_SETLEVELS ioctl call.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d81a12bc29ae4038770e05dce4ab7f26fd5880fb http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html http://openwall.com/lists/oss-security/2010/12/31/1 http://openwall.com/lists/oss-security/2010/12/31/4 http://secunia.com/advisories/42765 http://secunia.com/advisories/43291 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37 http://www.securityfocus.com/bid/45629 http://www.vupen.com/english/advisories/2011/0375 http://xorl.wordpress.com/2011/01/09/cve-2010-4527-linux-kernel-oss-sound-card-driver-buffer-overflow/ https://bugzilla.redhat.com/show_bug.cgi?id=667615