EulerOS 2.0 SP1 : qemu-kvm (EulerOS-SA-2017-1223)

Medium Nessus Plugin ID 103081


The remote EulerOS host is missing multiple security updates.


According to the versions of the qemu-kvm package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- An out-of-bounds memory access issue was found in Quick Emulator (QEMU) in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user inside a guest could use this flaw to crash the QEMU process.

- 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.

- 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)

- Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a DoS. (CVE-2017-10664)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected qemu-kvm packages.

See Also

Plugin Details

Severity: Medium

ID: 103081

File Name: EulerOS_SA-2017-1223.nasl

Version: $Revision: 3.2 $

Type: local

Published: 2017/09/11

Modified: 2018/01/30

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.1

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND


Base Score: 7.5

Temporal Score: 6.9

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

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:X

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:qemu-img, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/08/30

Reference Information

CVE: CVE-2016-4020, CVE-2017-10664, CVE-2017-2633, CVE-2017-5898

OSVDB: 137159, 151566, 152424, 160002