CVE-2011-4077 Information

Description

Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c in XFS in the Linux kernel 2.6 when CONFIG_XFS_DEBUG is disabled allows local users to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via an XFS image containing a symbolic link with a long pathname.

Reference

http://marc.info/?l=bugtraq&m=139447903326211&w=2 http://oss.sgi.com/archives/xfs/2011-10/msg00345.html http://secunia.com/advisories/48964 http://www.openwall.com/lists/oss-security/2011/10/26/1 http://www.openwall.com/lists/oss-security/2011/10/26/3 http://xorl.wordpress.com/2011/12/07/cve-2011-4077-linux-kernel-xfs-readlink-memory-corruption/ https://bugzilla.redhat.com/show_bug.cgi?id=749156