========================================================================== The checksum's (found through sum -r) of the files that you have received (other than this README) are as follows: 29249 359 patchSG0005059.eoe_sw 40035 6 patchSG0005059.eoe_man 35357 4 patchSG0005059 59650 2 patchSG0005059.idb ========================================================================== - 1 - 1. Patch_SG0005059_Release_Note This release note describes patch SG0005059 for IRIX releases 6.5.16m, 6.5.17m, 6.5.18m and 6.5.19m. 1.1 Supported_Hardware_Platforms This patch contains bug fixes for all IRIX platforms. 1.2 Supported_Software_Platforms This patch contains bug fixes for xfsdump on a system running IRIX 6.5.16m, 6.5.17m, 6.5.18m or 6.5.19m. The software cannot be installed on other configurations. 1.3 Bugs_Fixed_by_Patch_SG0005059 This patch contains fixes for the following bugs in IRIX 6.5.16m, 6.5.17m, 6.5.18m and 6.5.19m. Bug numbers from Silicon Graphics bug tracking system are included for reference. Patch 5059: Fixes: o Bug #885222 - Security flaw in xfsdump handling of dumped quotafiles When xfsdump is issued on a filesystem with quotas enabled, xfsdump calls an external program, /usr/etc/repquota, to keep track of the quotas during the dump. xfsdump calls repquota with the -e flag, which writes all quota information to an output file in a format that /usr/etc/edquota can read back in during the restore. The output file that is created by repquota is unsafe for two reasons: 1) It assumes that the root directory of the filesystem is not writable by non-root users. This may not always be the case. Any user with write privileges to the root directory of a quota-enabled filesystem may overwrite any file on the system with root privileges (by simply creating a symlink from the quota inventory file(s), xfsdump_quotas and/or xfsdump_quotas_group, pointing to any file(s) they wish to destroy. 2) The file is created with whatever umask xfsdump is run as, usually 022. This umask allows any user - 2 - on the system to view the quota information of any other user, for the duration of the filesystem dump (since the xfsdump_quotas* files are created with mode 644, -rw-r--r--). 1.4 Subsystems_Included_in_Patch_SG0005059 This patch release includes these subsystems: o patchSG0005059.eoe_man.base o patchSG0005059.eoe_sw.base o patchSG0005059.eoe_sw.quotas 1.5 Installation_Instructions Because you want to install only the patches for problems you have encountered, patch software is not installed by default. After reading the descriptions of the bugs fixed in this patch (see Section 1.3), determine the patches that meet your specific needs. If, after reading Sections 1.1 and 1.2 of these release notes, you are unsure whether your hardware and software meet the requirements for installing a particular patch, run inst. The inst program does not allow you to install patches that are incompatible with your hardware or software. Patch software is installed like any other Silicon Graphics software product. Follow the instructions in your Software Installation Administrator's Guide to bring up the miniroot form of the software installation tools. Follow these steps to select a patch for installation: 1. At the Inst> prompt, type install patchSGxxxxxxx where xxxxxxx is the patch number. 2. Initiate the installation sequence. Type Inst> go 3. You may find that two patches have been marked as incompatible. (The installation tools reject an installation request if an incompatibility is - 3 - detected.) If this occurs, you must deselect one of the patches. Inst> keep patchSGxxxxxxx where xxxxxxx is the patch number. 4. After completing the installation process, exit the inst program by typing Inst> quit 1.6 Patch_Removal_Instructions To remove a patch, use the versions remove command as you would for any other software subsystem. The removal process reinstates the original version of software unless you have specifically removed the patch history from your system. versions remove patchSGxxxxxxx where xxxxxxx is the patch number. To keep a patch but increase your disk space, use the versions removehist command to remove the patch history. versions removehist patchSGxxxxxxx where xxxxxxx is the patch number. 1.7 Known_Problems