NewStart CGSL MAIN 5.04 : dracut Vulnerability (NS-SA-2019-0016)

Medium Nessus Plugin ID 127169

Synopsis

The remote machine is affected by a vulnerability.

Description

The remote NewStart CGSL host, running version MAIN 5.04, has dracut packages installed that are affected by a 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 Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the vulnerable CGSL dracut packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

See Also

http://security.gd-linux.com/notice/NS-SA-2019-0016

Plugin Details

Severity: Medium

ID: 127169

File Name: newstart_cgsl_NS-SA-2019-0016_dracut.nasl

Version: 1.2

Type: local

Published: 2019/08/12

Updated: 2019/08/13

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2017-5715

CVSS v2.0

Base Score: 4.7

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

CVSS v3.0

Base Score: 5.6

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

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2019/07/17

Vulnerability Publication Date: 2018/01/04

Reference Information

CVE: CVE-2017-5715