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EulerOS Virtualization for ARM 64 3.0.6.0 : qemu-kvm (EulerOS-SA-2020-1367)

high Nessus Plugin ID 135154

Synopsis

The remote EulerOS Virtualization for ARM 64 host is missing multiple security updates.

Description

According to the versions of the qemu-kvm packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

 - qemu-kvm is an open source virtualizer that provides hardware emulation for the KVM hypervisor. qemu-kvm acts as a virtual machine monitor together with the KVM kernel modules, and emulates the hardware for a full system such as a PC and its assocated peripherals. As qemu-kvm requires no host kernel patches to run, it is safe and easy to use.Security Fix(es):Memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable.(CVE-2017-8086)The dhcp_decode function in slirp/bootp.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) via a crafted DHCP options string.(CVE-2017-11434)** DISPUTED
 ** QEMU 3.0.0 has an Integer Overflow because the qga/commands*.c files do not check the length of the argument list or the number of environment variables.
 NOTE: This has been disputed as not exploitable.(CVE-2019-12247)** DISPUTED ** An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSI_IOCTL_SEND_COMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 (the size of a sector). NOTE:
 a member of the QEMU security team disputes the significance of this issue because a 'privileged guest user has many ways to cause similar DoS effect, without triggering this assert.'(CVE-2019-20175)QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive. (CVE-2017-12809)The Virtio Vring implementation in QEMU allows local OS guest users to cause a denial of service (divide-by-zero error and QEMU process crash) by unsetting vring alignment while updating Virtio rings.
 (CVE-2017-17381)The rc4030_write function in hw/dma/rc4030.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (divide-by-zero error and QEMU process crash) via a large interval timer reload value.
 (CVE-2016-8667)Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display. (CVE-2018-7858)QEMU, when built with the Pseudo Random Number Generator (PRNG) back-end support, allows local guest OS users to cause a denial of service (process crash) via an entropy request, which triggers arbitrary stack based allocation and memory corruption.(CVE-2016-2858)

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.

Solution

Update the affected qemu-kvm packages.

See Also

http://www.nessus.org/u?93f008d3

Plugin Details

Severity: High

ID: 135154

File Name: EulerOS_SA-2020-1367.nasl

Version: 1.6

Type: local

Published: 4/2/2020

Updated: 3/20/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2019-20175

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:qemu-img, p-cpe:/a:huawei:euleros:qemu-kvm, p-cpe:/a:huawei:euleros:qemu-kvm-common, p-cpe:/a:huawei:euleros:qemu-kvm-tools, cpe:/o:huawei:euleros:uvp:3.0.6.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/2/2020

Reference Information

CVE: CVE-2016-2858, CVE-2016-8667, CVE-2017-11434, CVE-2017-12809, CVE-2017-17381, CVE-2017-8086, CVE-2018-7858, CVE-2019-12247, CVE-2019-20175