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libvirt: Multiple vulnerabilities

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201309-18 / libvirt
Release Date September 25, 2013
Latest Revision September 25, 2013: 1
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-emulation/libvirt < 1.0.5.1-r3 >= 1.0.5.1-r3 All supported architectures

Related bugreports: #454588, #470096

Synopsis

Multiple vulnerabilities have been found in libvirt, allowing remote attackers to execute arbitrary code or cause Denial of Service.

2.  Impact Information

Background

libvirt is a C toolkit for manipulating virtual machines.

Description

An error in the virNetMessageFree() function in rpc/virnetserverclient.c can lead to a use-after-free. Additionally, a socket leak in the remoteDispatchStoragePoolListAllVolumes command can lead to file descriptor exhaustion.

Impact

A remote attacker could cause certain errors during an RPC connection to cause a message to be freed without being removed from the message queue, possibly resulting in execution of arbitrary code or a Denial of Service condition. Additionally, a remote attacker could repeatedly issue the command to list all pool volumes, causing a Denial of Service condition.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All libvirt users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose
  ">=app-emulation/libvirt-1.0.5.1-r3"

4.  References



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Page updated September 25, 2013

Summary: This is a Gentoo Linux Security Advisory

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