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Red Hat Security Advisory 2017-2471-01

Red Hat Security Advisory 2017-2471-01
Posted Aug 14, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-2471-01 - The Simple Protocol for Independent Computing Environments is a remote display system built for virtual environments which allows the user to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. Security Fix: A vulnerability was discovered in spice server's protocol handling. An authenticated attacker could send specially crafted messages to the spice server, causing out-of-bounds memory accesses, leading to parts of server memory being leaked or a crash.

tags | advisory, remote, protocol
systems | linux, redhat
advisories | CVE-2017-7506
SHA-256 | a020e527a2c7bd4c01a094c58642d8ca08ce61c94a0ddc0b6fb37ddfa801bdde

Red Hat Security Advisory 2017-2471-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: spice security update
Advisory ID: RHSA-2017:2471-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:2471
Issue date: 2017-08-15
CVE Names: CVE-2017-7506
=====================================================================

1. Summary:

An update for spice is now available for Red Hat Enterprise Linux 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

The Simple Protocol for Independent Computing Environments (SPICE) is a
remote display system built for virtual environments which allows the user
to view a computing 'desktop' environment not only on the machine where it
is running, but from anywhere on the Internet and from a wide variety of
machine architectures.

Security Fix(es):

* A vulnerability was discovered in spice server's protocol handling. An
authenticated attacker could send specially crafted messages to the spice
server, causing out-of-bounds memory accesses, leading to parts of server
memory being leaked or a crash. (CVE-2017-7506)

This issue was discovered by Frediano Ziglio (Red Hat).

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

All applications using SPICE (most notably all QEMU-KVM instances using the
SPICE console) must be restarted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1452606 - CVE-2017-7506 spice: Possible buffer overflow via invalid monitor configurations

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
spice-0.12.8-2.el7.1.src.rpm

x86_64:
spice-debuginfo-0.12.8-2.el7.1.x86_64.rpm
spice-server-0.12.8-2.el7.1.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
spice-debuginfo-0.12.8-2.el7.1.x86_64.rpm
spice-server-devel-0.12.8-2.el7.1.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

Source:
spice-0.12.8-2.el7.1.src.rpm

x86_64:
spice-debuginfo-0.12.8-2.el7.1.x86_64.rpm
spice-server-0.12.8-2.el7.1.x86_64.rpm
spice-server-devel-0.12.8-2.el7.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
spice-0.12.8-2.el7.1.src.rpm

x86_64:
spice-debuginfo-0.12.8-2.el7.1.x86_64.rpm
spice-server-0.12.8-2.el7.1.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

x86_64:
spice-debuginfo-0.12.8-2.el7.1.x86_64.rpm
spice-server-devel-0.12.8-2.el7.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
spice-0.12.8-2.el7.1.src.rpm

x86_64:
spice-debuginfo-0.12.8-2.el7.1.x86_64.rpm
spice-server-0.12.8-2.el7.1.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
spice-debuginfo-0.12.8-2.el7.1.x86_64.rpm
spice-server-devel-0.12.8-2.el7.1.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2017-7506
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2017 Red Hat, Inc.
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