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Red Hat Security Advisory

 

Synopsis: Moderate: spice-server security update

Advisory ID: RHSA-2017:0253-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0253.html

Issue date: 2017-02-06

CVE Names: CVE-2016-9577 CVE-2016-9578

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1. Summary:

 

An update for spice-server is now available for Red Hat Enterprise Linux 6.

 

Red Hat Product Security has rated this update as having a security impact

of Moderate. 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 Desktop (v. 6) - x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - x86_64

Red Hat Enterprise Linux Workstation (v. 6) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - x86_64

 

3. Description:

 

The Simple Protocol for Independent Computing Environments (SPICE) is a

remote display protocol for virtual environments. SPICE users can access a

virtualized desktop or server from the local system or any system with

network access to the server. SPICE is used in Red Hat Enterprise Linux for

viewing virtualized guests running on the Kernel-based Virtual Machine

(KVM) hypervisor or on Red Hat Enterprise Virtualization Hypervisors.

 

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).

 

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/):

 

1399566 - CVE-2016-9578 spice: Remote DoS via crafted message

1401603 - CVE-2016-9577 spice: Buffer overflow in main_channel_alloc_msg_rcv_buf when reading large messages

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 6):

 

Source:

spice-server-0.12.4-13.el6_8.2.src.rpm

 

x86_64:

spice-server-0.12.4-13.el6_8.2.x86_64.rpm

spice-server-debuginfo-0.12.4-13.el6_8.2.x86_64.rpm

 

Red Hat Enterprise Linux Desktop Optional (v. 6):

 

x86_64:

spice-server-debuginfo-0.12.4-13.el6_8.2.x86_64.rpm

spice-server-devel-0.12.4-13.el6_8.2.x86_64.rpm

 

Red Hat Enterprise Linux HPC Node (v. 6):

 

Source:

spice-server-0.12.4-13.el6_8.2.src.rpm

 

x86_64:

spice-server-0.12.4-13.el6_8.2.x86_64.rpm

spice-server-debuginfo-0.12.4-13.el6_8.2.x86_64.rpm

 

Red Hat Enterprise Linux HPC Node Optional (v. 6):

 

x86_64:

spice-server-debuginfo-0.12.4-13.el6_8.2.x86_64.rpm

spice-server-devel-0.12.4-13.el6_8.2.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 6):

 

Source:

spice-server-0.12.4-13.el6_8.2.src.rpm

 

x86_64:

spice-server-0.12.4-13.el6_8.2.x86_64.rpm

spice-server-debuginfo-0.12.4-13.el6_8.2.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional (v. 6):

 

x86_64:

spice-server-debuginfo-0.12.4-13.el6_8.2.x86_64.rpm

spice-server-devel-0.12.4-13.el6_8.2.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 6):

 

Source:

spice-server-0.12.4-13.el6_8.2.src.rpm

 

x86_64:

spice-server-0.12.4-13.el6_8.2.x86_64.rpm

spice-server-debuginfo-0.12.4-13.el6_8.2.x86_64.rpm

 

Red Hat Enterprise Linux Workstation Optional (v. 6):

 

x86_64:

spice-server-debuginfo-0.12.4-13.el6_8.2.x86_64.rpm

spice-server-devel-0.12.4-13.el6_8.2.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-2016-9577

https://access.redhat.com/security/cve/CVE-2016-9578

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2017 Red Hat, Inc.

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