EulerOS 2.0 SP2 : dracut (EulerOS-SA-2018-1021)

Medium Nessus Plugin ID 106162

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the version of the dracut packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

- An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization). There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant CVE-2017-5715 triggers the speculative execution by utilizing branch target injection. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory accesses may cause allocation into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to cross the syscall and guest/host boundaries and read privileged memory by conducting targeted cache side-channel attacks.(CVE-2017-5715)

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 dracut package.

See Also

http://www.nessus.org/u?0d78a9b5

Plugin Details

Severity: Medium

ID: 106162

File Name: EulerOS_SA-2018-1021.nasl

Version: 3.11

Type: local

Published: 2018/01/19

Modified: 2018/08/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 4.7

Temporal Score: 3.7

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

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

CVSSv3

Base Score: 5.6

Temporal Score: 5.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/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:dracut, p-cpe:/a:huawei:euleros:dracut-config-generic, p-cpe:/a:huawei:euleros:dracut-config-rescue, p-cpe:/a:huawei:euleros:dracut-fips, p-cpe:/a:huawei:euleros:dracut-fips-aesni, p-cpe:/a:huawei:euleros:dracut-network, cpe:/o:huawei:euleros:2.0

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

Excluded KB Items: Host/EulerOS/uvp_version

Patch Publication Date: 2018/01/14

Reference Information

CVE: CVE-2017-5715