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RHEL 6 : spice-server (RHSA-2015:1889)

high Nessus Plugin ID 86361

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Synopsis

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

Description

An updated spice-server package that fixes two security issues is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

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.

A heap-based buffer overflow flaw was found in the way SPICE handled certain guest QXL commands related to surface creation. A user in a guest could use this flaw to read and write arbitrary memory locations on the host. (CVE-2015-5261)

A heap-based buffer overflow flaw was found in the way spice handled certain QXL commands related to the 'surface_id' parameter. A user in a guest could use this flaw to crash the host QEMU-KVM process or, possibly, execute arbitrary code with the privileges of the host QEMU-KVM process. (CVE-2015-5260)

These issues were discovered by Frediano Ziglio of Red Hat.

All spice-server users are advised to upgrade to this updated package, which contains backported patches to correct these issues.

Solution

Update the affected spice-server, spice-server-debuginfo and / or spice-server-devel packages.

See Also

https://access.redhat.com/errata/RHSA-2015:1889

https://access.redhat.com/security/cve/cve-2015-5260

https://access.redhat.com/security/cve/cve-2015-5261

Plugin Details

Severity: High

ID: 86361

File Name: redhat-RHSA-2015-1889.nasl

Version: 2.12

Type: local

Agent: unix

Published: 10/13/2015

Updated: 10/24/2019

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:spice-server-devel, p-cpe:/a:redhat:enterprise_linux:spice-server, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:6.7, p-cpe:/a:redhat:enterprise_linux:spice-server-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2015

Vulnerability Publication Date: 6/7/2016

Reference Information

CVE: CVE-2015-5260, CVE-2015-5261

RHSA: 2015:1889