CVE-2010-2946 Information

Description

fs/jfs/xattr.c in the Linux kernel before 2.6.35.2 does not properly handle a certain legacy format for storage of extended attributes which might allow local users by bypass intended xattr namespace restrictions via an \os2.\ substring at the beginning of a name.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=aca0fa34bdaba39bfddddba8ca70dba4782e8fe6 http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html http://secunia.com/advisories/41321 http://secunia.com/advisories/43291 http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.10 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.51 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35.2 http://www.mandriva.com/security/advisories?name=MDVSA-2011:051 http://www.openwall.com/lists/oss-security/2010/08/20/1 http://www.openwall.com/lists/oss-security/2010/08/20/11 http://www.securityfocus.com/bid/42589 http://www.ubuntu.com/usn/USN-1000-1 http://www.vupen.com/english/advisories/2011/0298 http://www.vupen.com/english/advisories/2011/0375