CentOS Update for qemu-img CESA-2017:1430 centos7

Published: 2017-06-14 04:40:38
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:P

Detection Type:
Linux Distribution Package

Summary:
Check the version of qemu-img

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm Linux Distribution Package provides the user-space component for running virtual machines that use KVM. Security Fix(es): * An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2017-7980) * An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service. (CVE-2017-7718) Red Hat would like to thank Jiangxin (PSIRT Huawei Inc) and Li Qiang (Qihoo 360 Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc) for reporting CVE-2017-7718. Bug Fix(es): * Previously, guest virtual machines in some cases became unresponsive when the 'pty' back end of a serial device performed an irregular I/O communication. This update improves the handling of serial I/O on guests, which prevents the described problem from occurring. (BZ#1452332)

Affected Versions:
qemu-img on CentOS 7

Recommendations:
Please Install the Updated Packages.

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-7718
https://nvd.nist.gov/vuln/detail/CVE-2017-7980

References:

http://lists.centos.org/pipermail/centos-announce/2017-June/022458.html

Severity
Medium
CVSS Score
4.6
Published
2017-06-14
Modified
2019-03-08
Category
CentOS Local Security Checks

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