RHEL 7 : qemu-kvm-rhev (RHSA-2017:1682)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

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

Description :

An update for qemu-kvm-rhev is now available for RHEV 3.X Hypervisor
and Agents for RHEL-7 and RHEV 4.X RHEV-H and Agents for RHEL-7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

KVM (Kernel-based Virtual Machine) is a full virtualization solution
for Linux on a variety of architectures. The qemu-kvm-rhev packages
provide the user-space component for running virtual machines that use
KVM in environments managed by Red Hat products.

Security Fix(es) :

* Quick Emulator (QEMU) built with Network Block Device (NBD) Server
support was vulnerable to a NULL pointer dereference issue. The flaw
could occur when releasing a client, which was not initialized due to
failed negotiation. A remote user or process could exploit this flaw
to crash the qemu-nbd server (denial of service). (CVE-2017-9524)

Bug Fix(es) :

* Previously, when the data plane was in use, changing the target
image of a virtual SCSI CD device caused the guest to terminate
unexpectedly with a core dump. With this update, the virtio-scsi bus
rejects SCSI CDs when the data plane is active, which prevents the
crash from occurring. Note that this is a temporary solution, and a
full fix to make the data plane and SCSI CD compatible will be
provided in the future. (BZ#1461837)

See also :

https://www.redhat.com/security/data/cve/CVE-2017-9524.html
http://rhn.redhat.com/errata/RHSA-2017-1682.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 101360 ()

Bugtraq ID:

CVE ID: CVE-2017-9524

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