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Debian DLA-1221-1 : ruby1.9.1 security update

critical Nessus Plugin ID 105428

Language:

Synopsis

The remote Debian host is missing a security update.

Description

Several vulnerabilities have been discovered in the interpreter for the Ruby language. The Common Vulnerabilities and Exposures project identifies the following problems :

CVE-2017-17405

A command injection vulnerability in Net::FTP might allow a malicious FTP server the execution of arbitrary commands.

CVE-2017-17790

A command injection vulnerability in lib/resolv.rb's lazy_initialze might allow a command injection attack. However untrusted input to this function is rather unlikely.

For Debian 7 'Wheezy', these problems have been fixed in version 1.9.3.194-8.1+deb7u7.

We recommend that you upgrade your ruby1.9.1 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2017/12/msg00025.html

https://packages.debian.org/source/wheezy/ruby1.9.1

Plugin Details

Severity: Critical

ID: 105428

File Name: debian_DLA-1221.nasl

Version: 3.5

Type: local

Agent: unix

Published: 12/26/2017

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 7.3

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libruby1.9.1-dbg, p-cpe:/a:debian:debian_linux:ruby1.9.1, p-cpe:/a:debian:debian_linux:ruby1.9.3, p-cpe:/a:debian:debian_linux:ruby1.9.1-examples, p-cpe:/a:debian:debian_linux:ri1.9.1, p-cpe:/a:debian:debian_linux:ruby1.9.1-full, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:ruby1.9.1-dev, p-cpe:/a:debian:debian_linux:libruby1.9.1, p-cpe:/a:debian:debian_linux:libtcltk-ruby1.9.1

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/25/2017

Reference Information

CVE: CVE-2017-17405, CVE-2017-17790