Huawei EulerOS: Security Advisory for qemu-kvm (EulerOS-SA-2019-1405)

Published: 2020-01-23 11:42:22
CVE Author: NIST National Vulnerability Database

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

Summary:
The remote host is missing an update for the Huawei EulerOS 'qemu-kvm' Linux Distribution Package(s) announced via the EulerOS-SA-2019-1405 advisory.

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

Technical Details:
An integer overflow issue was found in the NE200 NIC emulation. It could occur while receiving packets from the network, if the size value was greater than INT_MAX. Such overflow would lead to stack buffer overflow issue. A user inside guest could use this flaw to crash the QEMU process, resulting in DoS scenario. (CVE-2018-10839) qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_malloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket.(CVE-2018-12617) Qemu before version 2.9 is vulnerable to an improper link following when built with the VirtFS. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host. (CVE-2016-9602) Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur while loading a kernel image during the guest boot, if mh_load_end_addr address is greater than the mh_bss_end_addr address. A user or process could use this flaw to potentially achieve arbitrary code execution on a host.(CVE-2018-7550) An out-of-bounds read access issue was found in the VGA display emulator built into the Quick emulator (QEMU). It could occur while reading VGA memory to update graphics display. A privileged user/process inside guest could use this flaw to crash the QEMU process on the host resulting in denial of service situation.(CVE-2017-13672) An assert failure issue was found in the VGA display emulator built into the Quick emulator (QEMU). It could occur while updating graphics display, due to miscalculating region for dirty bitmap snapshot in split screen mode. A privileged user/process inside guest could use this flaw to crash the QEMU process on the host resulting in denial of service. (CVE-2017-13673) The Network Block Device (NBD) server in Quick Emulator (QEMU), is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS.(CVE-2017-15119) QEMU (aka Quick Emulator) before 2.9.0, when built with the USB OHCI Emulation support, allows local guest OS users to cause ... Description truncated. Please see the references for more information.

Affected Versions:
'qemu-kvm' Linux Distribution Package(s) on Huawei EulerOS Virtualization for ARM 64 3.0.1.0.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

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

https://nvd.nist.gov/vuln/detail/CVE-2016-9602
https://nvd.nist.gov/vuln/detail/CVE-2017-13672
https://nvd.nist.gov/vuln/detail/CVE-2017-13673
https://nvd.nist.gov/vuln/detail/CVE-2017-14167
https://nvd.nist.gov/vuln/detail/CVE-2017-15119
https://nvd.nist.gov/vuln/detail/CVE-2017-15124
https://nvd.nist.gov/vuln/detail/CVE-2017-15268
https://nvd.nist.gov/vuln/detail/CVE-2017-18043
https://nvd.nist.gov/vuln/detail/CVE-2017-5579
https://nvd.nist.gov/vuln/detail/CVE-2017-8284
https://nvd.nist.gov/vuln/detail/CVE-2017-8379
https://nvd.nist.gov/vuln/detail/CVE-2017-9330
https://nvd.nist.gov/vuln/detail/CVE-2017-9373
https://nvd.nist.gov/vuln/detail/CVE-2018-10839
https://nvd.nist.gov/vuln/detail/CVE-2018-12617
https://nvd.nist.gov/vuln/detail/CVE-2018-7550

References:

https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1405

Severity
High
CVSS Score
9.0
Published
2020-01-23
Modified
2020-01-23
Category
Huawei EulerOS Local Security Checks

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