4.7 - RHSA-2011:0586

Problem Description:

Updated libguestfs packages that fix one security issue, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - x86_64 Red Hat Enterprise Linux Workstation (v. 6) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - x86_64

3. Description:

libguestfs is a library for accessing and modifying guest disk images.

libguestfs relied on the format auto-detection in QEMU rather than allowing the guest image file format to be specified. A privileged guest user could potentially use this flaw to read arbitrary files on the host that were accessible to a user on that host who was running a program that utilized the libguestfs library. (CVE-2010-3851)

This erratum upgrades libguestfs to upstream version 1.7.17, which includes a number of bug fixes and one enhancement. Documentation for these bug fixes and this enhancement is provided in the Technical Notes document, linked to in the References section.

All libguestfs users are advised to upgrade to these updated packages, which correct this issue, and fix the bugs and add the enhancement noted in the Technical Notes.

4. Solution:

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

600144 - document that mkmountpoint and umount-all cannot be mixed 612308 - qemu -net / vlan option deprecated. Use -netdev instead. 613593 - Rebase libguestfs in RHEL 6.1 615223 - vfs-type could not read just-created filesystem 617440 - guestfish: fails to tilde expand '~' when the $HOME env is unset 627468 - [RFE]It's better to emphasize "libguestfs-winsupport" in V2V manpage or error output 627832 - [RFE] guestfish should print outputs in a suitable base (eg. octal for modes) 627833 - get-e2uuid should use blkid instead of "tune2fs -l" to get filesystem UUID 633174 - some guestfish sub commands can not handle special files properly 639601 - "virt-ls" command failed to parse domain name "#" 639602 - ""virt-list-filesystems" fails to parse the command line argument if the domain name is "#". 643958 - CVE-2010-3851 libguestfs: missing disk format specifier when adding a disk 657472 - checksum: wrong check sum type causes umount to fail 657502 - virt-inspector depends on EPEL package perl-String-ShellQuote but does not require it 666577 - libguestfs: unknown filesystem /dev/fd0 666579 - libguestfs: unknown filesystem /dev/hd{x} (cdrom) 668115 - virt-filesystems command fails on guest with corrupt filesystem label 668611 - guestfish -i is trying to mount all mounts from /etc/fstab and fails with an error when device doesn't exists 673477 - Add a grep-friendly string to LIBGUESTFS_TRACE output 673721 - Typo in virt-make-fs manual page 676788 - libguestfs trace segfaults when list-filesystems returns error 677616 - appliance doesn't include augeas device_map lens 691724 - virt-inspector reports unknown filesystem /dev/vda1 695138 - Remove dependency on gfs2-utils