EulerOS 2.0 SP2 : kernel (EulerOS-SA-2018-1001)

Medium Nessus Plugin ID 105618

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- The recent speculative execution CVEs address three potential attacks across a wide variety of architectures and hardware platforms.

- Note: This issue is present in hardware and cannot be fully fixed via software update. The nature of these vulnerabilities and their fixes introduces the possibility of reduced performance on patched systems.
The performance impact depends on the hardware and the applications in place.

- The first two variants abuse speculative execution to perform bounds-check bypass (CVE-2017-5753), or by utilizing branch target injection (CVE-2017-5715) to cause kernel code at an address under attacker control to execute speculatively. Collectively these are known as 'Spectre'.

- Variant CVE-2017-5715 fixes require CPU microcode to update.And advise to contact hardware vendors to receive the appropriate microcode for your processor.

- The third variant (CVE-2017-5754) relies on the fact that, on impacted microprocessors, during speculative execution of instruction permission faults, exception generation triggered by a faulting access is suppressed until the retirement of the whole instruction block.
Researchers have called this exploit 'Meltdown'.

- Note: Upgrade and performance specifications,please see http://developer.huawei.com/ict/en/performance_update

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 kernel packages.

See Also

http://www.nessus.org/u?e16e9a1c

Plugin Details

Severity: Medium

ID: 105618

File Name: EulerOS_SA-2018-1001.nasl

Version: 3.14

Type: local

Published: 2018/01/08

Modified: 2018/08/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 4.7

Temporal Score: 4.1

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

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

CVSSv3

Base Score: 5.6

Temporal Score: 5.4

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:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:kernel, p-cpe:/a:huawei:euleros:kernel-debug, p-cpe:/a:huawei:euleros:kernel-debug-devel, p-cpe:/a:huawei:euleros:kernel-debuginfo, p-cpe:/a:huawei:euleros:kernel-debuginfo-common-x86_64, p-cpe:/a:huawei:euleros:kernel-devel, p-cpe:/a:huawei:euleros:kernel-headers, p-cpe:/a:huawei:euleros:kernel-tools, p-cpe:/a:huawei:euleros:kernel-tools-libs, p-cpe:/a:huawei:euleros:perf, p-cpe:/a:huawei:euleros:python-perf, 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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/01/07

Exploitable With

CANVAS (CANVAS)

Reference Information

CVE: CVE-2017-5715, CVE-2017-5753, CVE-2017-5754