The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:0549 advisory.

    The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include     redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH)     are installed using a special build of Red Hat Enterprise Linux with only the packages required to host     virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and     performing administrative tasks.

    The following packages have been upgraded to a later upstream version: redhat-release-virtualization-host     (4.0), imgbased (0.8.16), redhat-virtualization-host (4.0). (BZ#1410848, BZ#1430244)

    Security Fix(es):

    * A vulnerability was discovered in SPICE in the server's protocol handling. An authenticated attacker     could send crafted messages to the SPICE server causing a heap overflow leading to a crash or possible     code execution. (CVE-2016-9577)

    * A vulnerability was discovered in SPICE in the server's protocol handling. An attacker able to connect     to the SPICE server could send crafted messages which would cause the process to crash. (CVE-2016-9578)

    These issues were discovered by Frediano Ziglio (Red Hat).

    Bug Fix(es):

    * Previously, imgbased blindly copied /etc from old layers into new layers in order to keep configuration     changes between upgrades. This meant that imgbased's behavior differed from RPM, in that unmodified     configuration files would be preserved across imgbased upgrades whereas 'yum upgrade' of the same packages     would have replaced them. Now, imgbased compares the sums of files to the originals kept per-layer in     /usr/share/factory/etc so that unmodified configuration files are now handled appropriately. (BZ#1418179)

    * Previously, some earlier versions of Red Hat Virtualization Host (RHVH) repeatedly prompted for     upgrades, even when the most recent version was already installed. This was caused by the RHVH image     containing a placeholder package that was made obsolete in order to upgrade. However, the package that was     used to upgrade was not propagated to the rpmdb on the new image. Now, upgrading includes the update     package in the rpmdb on the new image. (BZ#1422476)

    * With this update, Red Hat Virtualization Host (RHVH) now includes the 'screen' package. Previously,     ovirt-hosted-engine-setup invoked from a CLI warned users that the 'screen' package was not installed.
    Though this was not an explicit requirement when using cockpit, including it provides a better experience     if using the CLI. (BZ#1403729)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

RHEL 7 : redhat-virtualization-host (RHSA-2017:0549)

high Nessus Plugin ID 97844

Version 3.10