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Red Hat Enterprise Linux 6 RHSA-2011:0586-01 Low: libguestfs Security Issue

red hat
Calendar Grey May 19, 2011
Dist Redhat Esm H88
The recent security advisory from Red Hat concerning libguestfs addresses a significant vulnerability while simultaneously offering multiple improvements for Enterprise Linux.
Updated libguestfs packages that fix one security issue, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 6

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

Summary

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.

Topics%20covered

Topics Covered

security advisory security update bug fix Red Hat Enterprise Linux low severity enhancement libguestfs

References

https://access.redhat.com/security/cve/CVE-2010-3851 https://access.redhat.com/security/updates/classification#low https://access.redhat.com/search/

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
x86_64: guestfish-1.7.17-17.el6.x86_64.rpm libguestfs-1.7.17-17.el6.x86_64.rpm libguestfs-debuginfo-1.7.17-17.el6.x86_64.rpm libguestfs-java-1.7.17-17.el6.x86_64.rpm libguestfs-mount-1.7.17-17.el6.x86_64.rpm libguestfs-tools-1.7.17-17.el6.x86_64.rpm libguestfs-tools-c-1.7.17-17.el6.x86_64.rpm perl-Sys-Guestfs-1.7.17-17.el6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
x86_64: libguestfs-debuginfo-1.7.17-17.el6.x86_64.rpm libguestfs-devel-1.7.17-17.el6.x86_64.rpm libguestfs-java-devel-1.7.17-17.el6.x86_64.rpm libguestfs-javadoc-1.7.17-17.el6.x86_64.rpm ocaml-libguestfs-1.7.17-17.el6.x86_64.rpm ocaml-libguestfs-devel-1.7.17-17.el6.x86_64.rpm python-libguestfs-1.7.17-17.el6.x86_64.rpm ruby-libguestfs-1.7.17-17.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: guestfish-1.7.17-17.el6.x86_64.rpm libguestfs-1.7.17-17.el6.x86_64.rpm libguestfs-debuginfo-1.7.17-17.el6.x86_64.rpm libguestfs-java-1.7.17-17.el6.x86_64.rpm libguestfs-mount-1.7.17-17.el6.x86_64.rpm libguestfs-tools-1.7.17-17.el6.x86_64.rpm libguestfs-tools-c-1.7.17-17.el6.x86_64.rpm perl-Sys-Guestfs-1.7.17-17.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64:

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2011:0586-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0586.html
Issue date: 2011-05-19

Topic

Updated libguestfs packages that fix one security issue, several bugs, andadd one enhancement are now available for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having lowsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory security update bug fix Red Hat Enterprise Linux low severity enhancement libguestfs

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

Bugs Fixed

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

Read the Full Advisory

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