【CESA-2017:1430】最新バージョンの qemu-kvm が、Red Hat Enterprise Linux 7 からご利用いただけるようになりました
CESA-2017:1430
最新バージョンの qemu-kvm が、Red Hat Enterprise Linux 7 からご利用いただけるようになりました。
Red Hat製品のセキュリティ及び品質は大変ご好評いただいております。
今回の最新バージョンVulnerability Scoring System(CVSS)は、各セキュリティホールへのアクセス安全面を厳重にクラス分けし、確実・安全に詳細レポートをお送りいたします。参照セクションのリンクをクリックしてください。
Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux
on a variety of architectures. The qemu-kvm 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)
Bugs Fixed