CentOS Update for libvirt CESA-2011:0391 centos5 x86_64

Published: 2012-07-30 12:22:43
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:M/Au:N/C:C/I:C/A:C

Summary:
The remote host is missing an update for the 'libvirt' Linux Distribution Package(s) announced via the referenced advisory.

Affected Versions:
libvirt on CentOS 5

Recommendations:
Please install the updated Linux Distribution Packages.

Technical Details:
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 Linux Distribution Package, as this -devel sub-Linux Distribution Package is not available on Red Hat Enterprise Linux 5. With this update, the -devel sub-Linux Distribution 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 Linux Distribution Packages, which contain a backported patch to resolve this issue. After installing the updated Linux Distribution Packages, libvirtd must be restarted ('service libvirtd restart') for this update to take effect.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2011-1146

References:

http://lists.centos.org/pipermail/centos-announce/2011-April/017457.html

Severity
Medium
CVSS Score
6.9
Published
2012-07-30
Modified
2019-03-15
Category
CentOS Local Security Checks

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