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

High Nessus Plugin ID 99896

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?8b88931f

Plugin Details

Severity: High

ID: 99896

File Name: EulerOS_SA-2017-1051.nasl

Version: 1.12

Type: local

Published: 2017/05/01

Updated: 2018/11/14

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v3.0

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: CVSS:3.0/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, p-cpe:/a:huawei:euleros:rubygem-bigdecimal, p-cpe:/a:huawei:euleros:rubygem-io-console, p-cpe:/a:huawei:euleros:rubygem-json, p-cpe:/a:huawei:euleros:rubygem-psych, p-cpe:/a:huawei:euleros:rubygem-rdoc, p-cpe:/a:huawei:euleros:rubygems, 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: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/03/13

Reference Information

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

BID: 75482