RHEL 6 : libguestfs (RHSA-2013:1536)

Medium Nessus Plugin ID 70999


The remote Red Hat host is missing one or more security updates.


Updated libguestfs packages that fix one security issue, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate 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.

Libguestfs is a library and set of tools for accessing and modifying guest disk images.

It was found that guestfish, which enables shell scripting and command line access to libguestfs, insecurely created the temporary directory used to store the network socket when started in server mode. A local attacker could use this flaw to intercept and modify other user's guestfish command, allowing them to perform arbitrary guestfish actions with the privileges of a different user, or use this flaw to obtain authentication credentials. (CVE-2013-4419)

This issue was discovered by Michael Scherer of the Red Hat Regional IT team.

These updated libguestfs packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.5 Technical Notes, linked to in the References, for information on the most significant of these changes.

All libguestfs users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add these enhancements.


Update the affected packages.

See Also





Plugin Details

Severity: Medium

ID: 70999

File Name: redhat-RHSA-2013-1536.nasl

Version: $Revision: 1.6 $

Type: local

Agent: unix

Published: 2013/11/21

Modified: 2017/01/05

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS2#AV:A/AC:H/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:libguestfs, p-cpe:/a:redhat:enterprise_linux:libguestfs-debuginfo, p-cpe:/a:redhat:enterprise_linux:libguestfs-devel, p-cpe:/a:redhat:enterprise_linux:libguestfs-java, p-cpe:/a:redhat:enterprise_linux:libguestfs-java-devel, p-cpe:/a:redhat:enterprise_linux:libguestfs-javadoc, p-cpe:/a:redhat:enterprise_linux:libguestfs-tools, p-cpe:/a:redhat:enterprise_linux:libguestfs-tools-c, p-cpe:/a:redhat:enterprise_linux:ocaml-libguestfs, p-cpe:/a:redhat:enterprise_linux:ocaml-libguestfs-devel, p-cpe:/a:redhat:enterprise_linux:perl-Sys-Guestfs, p-cpe:/a:redhat:enterprise_linux:python-libguestfs, p-cpe:/a:redhat:enterprise_linux:ruby-libguestfs, cpe:/o:redhat:enterprise_linux:6

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2013/11/21

Reference Information

CVE: CVE-2013-4419

BID: 63226

OSVDB: 98713

RHSA: 2013:1536