EulerOS Virtualization 2.5.3 : kvm (EulerOS-SA-2019-1369)

Low Nessus Plugin ID 124747

Synopsis

The remote EulerOS Virtualization host is missing a security update.

Description

According to the version of the kvm package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability :

- An information leakage issue was found in the way Linux kernel's KVM hypervisor handled page fault exceptions while emulating instructions like VMXON, VMCLEAR, VMPTRLD, and VMWRITE with memory address as an operand.
It occurs if the operand is a mmio address, as the returned exception object holds uninitialized stack memory contents. A guest user/process could use this flaw to leak host's stack memory contents to a guest.(CVE-2019-7222)

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 kvm package.

See Also

http://www.nessus.org/u?29d874b4

Plugin Details

Severity: Low

ID: 124747

File Name: EulerOS_SA-2019-1369.nasl

Version: 1.4

Type: local

Published: 2019/05/10

Updated: 2019/06/27

Dependencies: 12634

Risk Information

Risk Factor: Low

CVSS v2.0

Base Score: 2.1

Temporal Score: 1.6

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 5.5

Temporal Score: 5

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:kvm, cpe:/o:huawei:euleros:uvp:2.5.3

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: 2019/05/05

Reference Information

CVE: CVE-2019-7222