EulerOS 2.0 SP2 : ruby (EulerOS-SA-2017-1051)

critical Nessus Plugin ID 99896
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

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

- An exploitable heap overflow vulnerability exists in the Fiddle::Function.new 'initialize' function functionality of Ruby. In Fiddle::Function.new 'initialize' heap buffer 'arg_types' allocation is made based on args array length. Specially constructed object passed as element of args array can increase this array size after mentioned allocation and cause heap overflow.(CVE-2016-2339)

- Type confusion exists in _cancel_eval Ruby's TclTkIp class method. Attacker passing different type of object than String as 'retval' argument can cause arbitrary code execution.(CVE-2016-2337)

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 ruby packages.

See Also

http://www.nessus.org/u?d7ccee39

Plugin Details

Severity: Critical

ID: 99896

File Name: EulerOS_SA-2017-1051.nasl

Version: 1.18

Type: local

Published: 5/1/2017

Updated: 4/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: E:ND/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:ruby, p-cpe:/a:huawei:euleros:ruby-irb, p-cpe:/a:huawei:euleros:ruby-libs, 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 Ease: No known exploits are available

Patch Publication Date: 3/14/2017

Reference Information

CVE: CVE-2015-3900, CVE-2016-2337, CVE-2016-2339

BID: 75482