RHEL 7 : qemu-kvm-rhev (RHSA-2017:2392)

Medium Nessus Plugin ID 102158

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 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.

The following packages have been upgraded to a later upstream version:
qemu-kvm-rhev (2.9.0). (BZ#1387372, BZ#1387600, BZ#1400962)

Security Fix(es) :

* A stack-based buffer overflow flaw was found in the Quick Emulator (QEMU) built with the Network Block Device (NBD) client support. The flaw could occur while processing server's response to a 'NBD_OPT_LIST' request. A malicious NBD server could use this issue to crash a remote NBD client resulting in DoS or potentially execute arbitrary code on client host with privileges of the QEMU process.
(CVE-2017-2630)

* An integer overflow flaw was found in Quick Emulator (QEMU) in the CCID Card device support. The flaw could occur while passing messages via command/response packets to and from the host. A privileged user inside a guest could use this flaw to crash the QEMU process.
(CVE-2017-5898)

* An information exposure flaw was found in Quick Emulator (QEMU) in Task Priority Register (TPR) optimizations for 32-bit Windows guests.
The flaw could occur while accessing TPR. A privileged user inside a guest could use this issue to read portions of the host memory.
(CVE-2016-4020)

* A memory-leak flaw was found in the Quick Emulator(QEMU) built with USB xHCI controller emulation support. The flaw could occur while doing a USB-device unplug operation. Unplugging the device repeatedly resulted in leaking host memory, affecting other services on the host.
A privileged user inside the guest could exploit this flaw to cause a denial of service on the host or potentially crash the host's QEMU process instance. (CVE-2016-7466)

* Multiple CVEs(CVE-2016-10155, CVE-2016-4020, CVE-2016-6835, CVE-2016-6888, CVE-2016-7422, CVE-2016-7466, CVE-2016-8576, CVE-2016-8669, CVE-2016-8909, CVE-2016-8910, CVE-2016-9907, CVE-2016-9911, CVE-2016-9921, CVE-2016-9922, CVE-2017-2630, CVE-2017-5579, CVE-2017-5898, CVE-2017-5973, CVE-2017-9310, CVE-2017-9373, CVE-2017-9374, CVE-2017-9375) were fixed as result of rebase to QEMU version 2.9.0.

Red Hat would like to thank Li Qiang (Qihoo 360 Inc.) for reporting CVE-2016-6835 and CVE-2016-6888; Li Qiang (360.cn Inc.) for reporting CVE-2017-5898, CVE-2016-7466, CVE-2016-10155, CVE-2017-5579, and CVE-2017-5973; Donghai Zdh (Alibaba Inc.) for reporting CVE-2016-4020;
Qinghao Tang (Marvel Team 360.cn Inc.) and Zhenhao Hong (Marvel Team 360.cn Inc.) for reporting CVE-2016-7422; PSIRT (Huawei Inc.) for reporting CVE-2016-8669; Andrew Henderson (Intelligent Automation Inc.) for reporting CVE-2016-8910; Qinghao Tang (Qihoo 360), Li Qiang (Qihoo 360), and Jiangxin (Huawei Inc.) for reporting CVE-2016-9921 and CVE-2016-9922; and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-9310, CVE-2017-9373, CVE-2017-9374, and CVE-2017-9375.

Additional Changes :

This update also fixes several bugs and adds various enhancements.
Documentation for these changes is available from the Release Notes document linked to in the References section.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2017:2392

https://access.redhat.com/security/cve/cve-2016-10155

https://access.redhat.com/security/cve/cve-2016-4020

https://access.redhat.com/security/cve/cve-2016-6835

https://access.redhat.com/security/cve/cve-2016-6888

https://access.redhat.com/security/cve/cve-2016-7422

https://access.redhat.com/security/cve/cve-2016-7466

https://access.redhat.com/security/cve/cve-2016-8576

https://access.redhat.com/security/cve/cve-2016-8669

https://access.redhat.com/security/cve/cve-2016-8909

https://access.redhat.com/security/cve/cve-2016-8910

https://access.redhat.com/security/cve/cve-2016-9907

https://access.redhat.com/security/cve/cve-2016-9911

https://access.redhat.com/security/cve/cve-2016-9921

https://access.redhat.com/security/cve/cve-2016-9922

https://access.redhat.com/security/cve/cve-2017-2630

https://access.redhat.com/security/cve/cve-2017-5579

https://access.redhat.com/security/cve/cve-2017-5898

https://access.redhat.com/security/cve/cve-2017-5973

https://access.redhat.com/security/cve/cve-2017-9310

https://access.redhat.com/security/cve/cve-2017-9373

https://access.redhat.com/security/cve/cve-2017-9374

https://access.redhat.com/security/cve/cve-2017-9375

Plugin Details

Severity: Medium

ID: 102158

File Name: redhat-RHSA-2017-2392.nasl

Version: 3.10

Type: local

Agent: unix

Published: 2017/08/03

Updated: 2019/10/24

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/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:qemu-img-rhev, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-common-rhev, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-rhev, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-rhev-debuginfo, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tools-rhev, cpe:/o:redhat:enterprise_linux:7

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/08/01

Vulnerability Publication Date: 2016/05/25

Reference Information

CVE: CVE-2016-10155, CVE-2016-4020, CVE-2016-6835, CVE-2016-6888, CVE-2016-7422, CVE-2016-7466, CVE-2016-8576, CVE-2016-8669, CVE-2016-8909, CVE-2016-8910, CVE-2016-9907, CVE-2016-9911, CVE-2016-9921, CVE-2016-9922, CVE-2017-2630, CVE-2017-5579, CVE-2017-5898, CVE-2017-5973, CVE-2017-9310, CVE-2017-9373, CVE-2017-9374, CVE-2017-9375

RHSA: 2017:2392