- Issued:
- 2011-03-28
- Updated:
- 2011-03-28
RHSA-2011:0391 - Important: libvirt security update
Synopsis
Important: libvirt security update
Type/Severity
Security Advisory Important
Topic
Updated libvirt packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having important 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.
Description
The libvirt library is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remotely managing virtualized systems.
It was found that several libvirt API calls did not honor the read-only permission for connections. A local attacker able to establish a read-only connection to libvirtd on a server could use this flaw to execute commands that should be restricted to read-write connections, possibly leading to a denial of service or privilege escalation. (CVE-2011-1146)
Note: Previously, using rpmbuild without the '--define "rhel 5"' option to build the libvirt source RPM on Red Hat Enterprise Linux 5 failed with a "Failed build dependencies" error for the device-mapper-devel package, as this -devel sub-package is not available on Red Hat Enterprise Linux 5. With this update, the -devel sub-package is no longer checked by default as a dependency when building on Red Hat Enterprise Linux 5, allowing the libvirt source RPM to build as expected.
All libvirt users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing the updated packages, libvirtd must be restarted ("service libvirtd restart") for this update to take effect.
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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.6 | ia64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.6 | i386 |
| Red Hat Enterprise Linux for Scientific Computing | 6 | x86_64 |
| Red Hat Enterprise Linux for Power, big endian | 6 | ppc64 |
| Red Hat Enterprise Linux for IBM z Systems | 6 | s390x |
| Red Hat Enterprise Linux Workstation | 6 | x86_64 |
| Red Hat Enterprise Linux Workstation | 6 | i386 |
| Red Hat Enterprise Linux Workstation | 5 | x86_64 |
| Red Hat Enterprise Linux Workstation | 5 | i386 |
| Red Hat Enterprise Linux Server | 6 | x86_64 |
| Red Hat Enterprise Linux Server | 6 | i386 |
| Red Hat Enterprise Linux Server | 5 | x86_64 |
| Red Hat Enterprise Linux Server | 5 | ia64 |
| Red Hat Enterprise Linux Server | 5 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 6 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - AUS | 5.6 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 5.6 | ia64 |
| Red Hat Enterprise Linux Server - AUS | 5.6 | i386 |
| Red Hat Enterprise Linux Desktop | 6 | x86_64 |
| Red Hat Enterprise Linux Desktop | 6 | i386 |
Updated Packages
- libvirt-0.8.1-27.el6_0.5.x86_64.rpm
- libvirt-0.8.2-15.el5_6.3.src.rpm
- libvirt-0.8.2-15.el5_6.3.i386.rpm
- libvirt-debuginfo-0.8.1-27.el6_0.5.s390x.rpm
- libvirt-debuginfo-0.8.1-27.el6_0.5.ppc64.rpm
- libvirt-0.8.2-15.el5_6.3.x86_64.rpm
- libvirt-python-0.8.1-27.el6_0.5.ppc64.rpm
- libvirt-client-0.8.1-27.el6_0.5.s390.rpm
- libvirt-client-0.8.1-27.el6_0.5.ppc64.rpm
- libvirt-client-0.8.1-27.el6_0.5.s390x.rpm
- libvirt-python-0.8.1-27.el6_0.5.s390x.rpm
- libvirt-python-0.8.1-27.el6_0.5.i686.rpm
- libvirt-client-0.8.1-27.el6_0.5.ppc.rpm
- libvirt-python-0.8.2-15.el5_6.3.ia64.rpm
- libvirt-debuginfo-0.8.1-27.el6_0.5.ppc.rpm
- libvirt-python-0.8.2-15.el5_6.3.x86_64.rpm
- libvirt-python-0.8.1-27.el6_0.5.x86_64.rpm
- libvirt-0.8.1-27.el6_0.5.i686.rpm
- libvirt-0.8.1-27.el6_0.5.ppc64.rpm
- libvirt-devel-0.8.1-27.el6_0.5.ppc64.rpm
- libvirt-devel-0.8.1-27.el6_0.5.s390x.rpm
- libvirt-client-0.8.1-27.el6_0.5.x86_64.rpm
- libvirt-devel-0.8.1-27.el6_0.5.x86_64.rpm
- libvirt-0.8.1-27.el6_0.5.s390x.rpm
- libvirt-devel-0.8.2-15.el5_6.3.ia64.rpm
- libvirt-devel-0.8.1-27.el6_0.5.ppc.rpm
- libvirt-0.8.2-15.el5_6.3.ia64.rpm
- libvirt-devel-0.8.1-27.el6_0.5.i686.rpm
- libvirt-client-0.8.1-27.el6_0.5.i686.rpm
- libvirt-devel-0.8.2-15.el5_6.3.i386.rpm
- libvirt-devel-0.8.1-27.el6_0.5.s390.rpm
- libvirt-0.8.1-27.el6_0.5.src.rpm
- libvirt-debuginfo-0.8.1-27.el6_0.5.i686.rpm
- libvirt-debuginfo-0.8.1-27.el6_0.5.x86_64.rpm
- libvirt-python-0.8.2-15.el5_6.3.i386.rpm
- libvirt-debuginfo-0.8.1-27.el6_0.5.s390.rpm
- libvirt-devel-0.8.2-15.el5_6.3.x86_64.rpm
Fixes
CVEs
References
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.