Mandriva Linux Security Advisory : libvirt (MDVSA-2014:097)

This script is Copyright (C) 2014 Tenable Network Security, Inc.


Synopsis :

The remote Mandriva Linux host is missing one or more security
updates.

Description :

Multiple vulnerabilities has been discovered and corrected in
libvirt :

The LXC driver (lxc/lxc_driver.c) in libvirt 1.0.1 through 1.2.1
allows local users to (1) delete arbitrary host devices via the
virDomainDeviceDettach API and a symlink attack on /dev in the
container; (2) create arbitrary nodes (mknod) via the
virDomainDeviceAttach API and a symlink attack on /dev in the
container; and cause a denial of service (shutdown or reboot host OS)
via the (3) virDomainShutdown or (4) virDomainReboot API and a symlink
attack on /dev/initctl in the container, related to paths under
/proc//root and the virInitctlSetRunLevel function (CVE-2013-6456).

libvirt was patched to prevent expansion of entities when parsing XML
files. This vulnerability allowed malicious users to read arbitrary
files or cause a denial of service (CVE-2014-0179).

The updated packages have been upgraded to the 1.1.3.5 version and
patched to correct these issues.

See also :

http://lists.opensuse.org/opensuse-updates/2014-05/msg00048.html
http://security.libvirt.org/2014/0003.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.8
(CVSS2#AV:A/AC:M/Au:S/C:N/I:P/A:C)
CVSS Temporal Score : 5.0
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Mandriva Local Security Checks

Nessus Plugin ID: 74075 ()

Bugtraq ID: 65743
67289

CVE ID: CVE-2013-6456
CVE-2014-0179

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