Date: Thu, 1 Oct 2009 12:10:48 -0500 Reply-To: Troy DawsonSender: Security Errata for Scientific Linux From: Troy Dawson Subject: Security ERRATA Low: gfs2-utils on SL5.x i386/x86_64 Comments: To: "scientific-linux-errata@fnal.gov" Synopsis: Low: gfs2-utils security and bug fix update Issue date: 2009-09-02 CVE Names: CVE-2008-6552 Multiple insecure temporary file use flaws were discovered in GFS2 user level utilities. A local attacker could use these flaws to overwrite an arbitrary file writable by a victim running those utilities (typically root) with the output of the utilities via a symbolic link attack. (CVE-2008-6552) This update also fixes the following bugs: * gfs2_fsck now properly detects and repairs problems with sequence numbers on GFS2 file systems. * GFS2 user utilities now use the file system UUID. * gfs2_grow now properly updates the file system size during operation. * gfs2_fsck now returns the proper exit codes. * gfs2_convert now properly frees blocks when removing free blocks up to height 2. * the gfs2_fsck manual page has been renamed to fsck.gfs2 to match current standards. * the 'gfs2_tool df' command now provides human-readable output. * mounting GFS2 file systems with the noatime or noquota option now works properly. * new capabilities have been added to the gfs2_edit tool to help in testing and debugging GFS and GFS2 issues. * the 'gfs2_tool df' command no longer segfaults on file systems with a block size other than 4k. * the gfs2_grow manual page no longer references the '-r' option, which has been removed. * the 'gfs2_tool unfreeze' command no longer hangs during use. * gfs2_convert no longer corrupts file systems when converting from GFS to GFS2. * gfs2_fsck no longer segfaults when encountering a block which is listed as both a data and stuffed directory inode. * gfs2_fsck can now fix file systems even if the journal is already locked for use. * a GFS2 file system's metadata is now properly copied with 'gfs2_edit savemeta' and 'gfs2_edit restoremeta'. * the gfs2_edit savemeta function now properly saves blocks of type 2. * 'gfs2_convert -vy' now works properly on the PowerPC architecture. * when mounting a GFS2 file system as '/', mount_gfs2 no longer fails after being unable to find the file system in '/proc/mounts'. * gfs2_fsck no longer segfaults when fixing 'EA leaf block type' problems. SL 5.x SRPMS: gfs2-utils-0.1.62-1.el5.src.rpm i386: gfs2-utils-0.1.62-1.el5.i386.rpm x86_64: gfs2-utils-0.1.62-1.el5.x86_64.rpm -Connie Sieh -Troy Dawson